Citation:

PANGAEA.969380

Name: The Mediterranean Sea and the Red Sea OHGDGT surface sediment data
Published: 2024-06-27
License: https://creativecommons.org/licenses/by/4.0/
Keywords: GDGTs; hydroxylated GDGTs; Mediterranean Sea; %OH; OH-GDGTs; paleotemperature proxy; Red Sea; RI-OH; RI-OH'; Surface sediments; TEX86; TEX86OH

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Abstract:

We explore recently developed temperature proxies based on hydroxylated isoprenoid Glycerol Dialkyl Glycerol Tetraethers (OH-isoGDGTs), such as %OH, RI-OH, RI-OH' and TEX86OH for their potential for reconstructing temperature changes in the Mediterranean Sea and the Red Sea. These OH-isoGDGT-based proxies have not been adequately explored in these semi-enclosed basins. Here we explore the proxies derived from the OH-GDGTs from surface sediments from the Red Sea and Balearic Sea, and compile it with previously published data from the Gulf of Lions (Varma et al., 2023, doi:10.1016/j.gca.2023.12.019 (GCA)). The excel sheet contains information regarding the surface sediments, their location, enivironmental parameters from each location extracted from WOA and NISPP AVHRR database, peak area of iso-GDGTs and OH-isoGDGTs, proxy indices discussed in the study and references for previously published data. These surface sediments were previously explored for GDGT-based proxy, TEX86 and published along with the papers Trommer et al. (2009, doi:10.1016/j.orggeochem.2009.03.001), OG; and Kim et al. (2015, doi:10.1016/j.gca.2014.11.017), GCA.

Keyword(s):

GDGTs; hydroxylated GDGTs; Mediterranean Sea; %OH; OH-GDGTs; paleotemperature proxy; Red Sea; RI-OH; RI-OH'; Surface sediments; TEX86; TEX86OH

Supplement to:

Varma, Devika; van der Meer, Marcel T J; Reichart, Gert-Jan; Schouten, Stefan (2024): Impact of water depth on the distributions and proxies of isoprenoidal hydroxylated GDGTs in the Mediterranean Sea and the Red Sea. Organic Geochemistry, 104780, https://doi.org/10.1016/j.orggeochem.2024.104780

Related to:

Varma, Devika; Hopmans, Ellen C; van Kemenda, Zoe R; Kusch, Stephanie; Berg, Sonja; Bale, Nicole Jane; Sangiorgi, Francesca; Reichart, Gert-Jan; Sinninghe Damsté, Jaap S; Schouten, Stefan (2023): Evaluating isoprenoidal hydroxylated GDGT-based temperature proxies in surface sediments from the global ocean. Geochimica et Cosmochimica Acta, S0016703723006403, https://doi.org/10.1016/j.gca.2023.12.019

Funding:

European Commission (EC), grant/award no. 847504 : Local training network: Netherlands Earth System Science Centre: “NESSC”

Royal Netherlands Institute for Sea Research, Texel (NIOZ), grant/award no. 024.002.001

Coverage:

Median Latitude: 37.612326 * Median Longitude: 12.804037 * South-bound Latitude: 15.560000 * West-bound Longitude: 2.200000 * North-bound Latitude: 43.400000 * East-bound Longitude: 82.357690

Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.005 m

Event(s):

BT-A * Latitude: 42.500000 * Longitude: 5.000000 * Elevation: -1987.0 m * Method/Device: MultiCorer (MUC)

BT-B * Latitude: 42.700000 * Longitude: 4.900000 * Elevation: -1488.0 m * Method/Device: MultiCorer (MUC)

BT-C * Latitude: 42.700000 * Longitude: 4.800000 * Elevation: -980.0 m * Method/Device: MultiCorer (MUC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Varma, Devika		At sampling site
2	Latitude of event	Latitude		Varma, Devika		At sampling site
3	Longitude of event	Longitude		Varma, Devika		At sampling site
4	Elevation of event	Elevation	m	Varma, Devika		At sampling site
5	Sample code/label	Sample label		Varma, Devika
6	DEPTH, sediment/rock	Depth sed	m	Varma, Devika		Geocode
7	Sea surface temperature, annual mean	SST (1-12)	°C	Varma, Devika	extracted from the World Ocean Atlas 2018 (WOA18)	Annual mean SST for the Mediterranean Sea sediments are from NSIPP AVHRR (Advanced Very High Resolution Radiometer) SST (https://www.ncei.noaa.gov/products/avhrr-pathfinder-sst).
8	Acyclic glycerol dialkyl glycerol tetraether, fractional abundance	GDGT-0		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1302
9	Monocyclic glycerol dialkyl glycerol tetraether, fractional abundance	GDGT-1		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1300
10	Dicyclic glycerol dialkyl glycerol tetraether, fractional abundance	GDGT-2		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1298
11	Tricyclic glycerol dialkyl glycerol tetraether, fractional abundance	GDGT-3		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1296
12	Crenarchaeol, fractional abundance	Cren		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1292
13	Crenarchaeol regio-isomer, fractional abundance	Cren'		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1292
14	Hydroxylated acyclic glycerol dialkyl glycerol tetraether, fractional abundance	OH-GDGT-0		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1300
15	Hydroxylated monocyclic glycerol dialkyl glycerol tetraether, fractional abundance	OH-GDGT-1		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1298
16	Hydroxylated dicyclic glycerol dialkyl glycerol tetraether, fractional abundance	OH-GDGT-2		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1296
17	Acyclic glycerol dialkyl glycerol tetraether (peak area)	GDGT-0 peak area		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1302
18	Monocyclic glycerol dialkyl glycerol tetraether (peak area)	GDGT-1 peak area		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1300
19	Dicyclic glycerol dialkyl glycerol tetraether (peak area)	GDGT-2 peak area		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1298
20	Tricyclic glycerol dialkyl glycerol tetraether (peak area)	GDGT-3 peak area		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1296
21	Crenarchaeol (peak area)	Cren peak area		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1292
22	Crenarchaeol isomer (peak area)	Cren iso peak area		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1292
23	Hydroxylated acyclic glycerol dialkyl glycerol tetraether (peak area)	OH-GDGT-0 peak area		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1300
24	Monocyclic glycerol dialkyl glycerol tetraether (peak area)	GDGT-1 peak area		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1298
25	Hydroxylated dicyclic glycerol dialkyl glycerol tetraether (peak area)	OH-GDGT-2 peak area		Varma, Devika	Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS)	m/z 1296
26	Branched and isoprenoid tetraether index	BIT		Varma, Devika	Calculated according to Hopmans et al. (2004); De Jonge et al. (2015)	Hopmans et al. (2004, doi:10.1016/j.epsl.2004.05.012)
27	Tetraether index of 86 carbon atoms	TEX86		Varma, Devika	Calculated according to Schouten et al. (2002)
28	Ring index of hydroxylated tetraethers RI-OH	RI-OH		Varma, Devika	Calculated according to Lü et al. (2015)
29	Ring index of hydroxylated tetraethers RI-OH'	RI-OH'		Varma, Devika	Calculated according to Lü et al. (2015)
30	Hydroxide	OH	%	Varma, Devika	Calculated according to Huguet et al. (2013)
31	Tetraether index of 86 carbon atoms including OH-isoGDGT-0	TEX86-OH		Varma, Devika	Calculated according to Varma et al. (2023)
32	Analytical method	Method		Varma, Devika
33	Sample comment	Sample comment		Varma, Devika
34	Reference/source	Reference		Varma, Devika
35	Uniform resource locator/link to reference	URL ref		Varma, Devika

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

2474 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event (At sampling site)	2 Latitude (At sampling site)	3 Longitude (At sampling site)	4 Elevation [m] (At sampling site)	5 Sample label	6 Depth sed [m]	7 SST (1-12) [°C] (Annual mean SST for the Medit...)	8 GDGT-0 (m/z 1302, Ultra high performa...)	9 GDGT-1 (m/z 1300, Ultra high performa...)	10 GDGT-2 (m/z 1298, Ultra high performa...)	11 GDGT-3 (m/z 1296, Ultra high performa...)	12 Cren (m/z 1292, Ultra high performa...)	13 Cren' (m/z 1292, Ultra high performa...)	14 OH-GDGT-0 (m/z 1300, Ultra high performa...)	15 OH-GDGT-1 (m/z 1298, Ultra high performa...)	16 OH-GDGT-2 (m/z 1296, Ultra high performa...)	17 GDGT-0 peak area (m/z 1302, Ultra high performa...)	18 GDGT-1 peak area (m/z 1300, Ultra high performa...)	19 GDGT-2 peak area (m/z 1298, Ultra high performa...)	20 GDGT-3 peak area (m/z 1296, Ultra high performa...)	21 Cren peak area (m/z 1292, Ultra high performa...)	22 Cren iso peak area (m/z 1292, Ultra high performa...)	23 OH-GDGT-0 peak area (m/z 1300, Ultra high performa...)	24 GDGT-1 peak area (m/z 1298, Ultra high performa...)	25 OH-GDGT-2 peak area (m/z 1296, Ultra high performa...)	26 BIT (Hopmans et al. (2004, doi:10....)	27 TEX86 (Calculated according to Schou...)	28 RI-OH (Calculated according to Lü et...)	29 RI-OH' (Calculated according to Lü et...)	30 OH [%] (Calculated according to Hugue...)	31 TEX86-OH (Calculated according to Varma...)	32 Method	33 Sample comment	34 Reference	35 URL ref
IDEA_0604_dr2	39.8000	2.3000	-375	IDEA_0604_dr2	0.005	19.4	0.34	0.08	0.05	0.01	0.49	0.03				124886	27589	19343	4971	181345	9330	3179			0.02	0.55				0.52	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_0604_dr3	39.8000	2.3000	-684	IDEA_0604_dr3	0.005	19.3	0.32	0.08	0.06	0.01	0.50	0.03				92454	21840	16770	3228	141657	8577				0.00	0.57				0.57	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_0604_dr4	39.8000	2.2000	-783	IDEA_0604_dr4	0.005	19.3	0.31	0.07	0.06	0.01	0.52	0.03				218174	51778	45197	6900	367425	22330	4113			0.01	0.59				0.57	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_0604_dr7	39.1000	2.7000	-157	IDEA_0604_dr7	0.005	19.5	0.35	0.07	0.04	0.01	0.50	0.02	0.35	0.36	0.29	1224015	254145	143096	45161	1729682	56328	22854	23398	19246	0.03	0.49	1.45	0.94	1.86	0.47	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_0604_dr8	39.0000	2.7000	-396	IDEA_0604_dr8	0.005	19.5	0.31	0.08	0.05	0.01	0.51	0.03				80371	21104	13157	3624	132715	7400				0.03	0.53				0.53	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_0803_dr4	39.0000	2.7000	-353	IDEA_0803_dr4	0.005	19.5	0.32	0.08	0.05	0.01	0.51	0.02	0.42	0.32	0.27	734366	174344	113060	29933	1171615	54790	13810	10536	8810	0.05	0.53	1.46	0.85	1.43	0.51	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_0903_dr1	39.0000	2.6000	-757	IDEA_0903_dr1	0.005	19.5	0.31	0.08	0.07	0.01	0.50	0.03	0.44	0.32	0.24	423305	102913	97758	15307	680105	45642	7349	5439	4071	0.02	0.61	1.43	0.81	1.22	0.59	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_0903_dr2	39.0000	2.7000	-359	IDEA_0903_dr2	0.005	19.5	0.32	0.08	0.05	0.02	0.51	0.03				65857	16258	10080	3143	105336	6358				0.00	0.55				0.55	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_0903_dr4	39.1000	2.7000	-152	IDEA_0903_dr4	0.005	19.5	0.35	0.08	0.03	0.01	0.51	0.02	0.32	0.34	0.33	102573	22541	9948	4095	152291	5405	3027	3221	3114	0.04	0.46	1.49	1.01	3.06	0.43	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_0903_dr6	39.8000	2.3000	-691	IDEA_0903_dr6	0.005	19.3	0.31	0.07	0.05	0.01	0.52	0.03				121894	28887	21418	4747	202005	11494	3772			0.12	0.57				0.54	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_0903_dr7	39.8000	2.3000	-389	IDEA_0903_dr7	0.005	19.4	0.32	0.07	0.05	0.01	0.52	0.03	0.39	0.33	0.28	140080	32992	21477	5849	231059	13118	4299	3647	3092	0.07	0.55	1.46	0.89	2.42	0.52	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_1103_dr2	39.0000	2.7000	-333	IDEA_1103_dr2	0.005	19.5	0.31	0.08	0.05	0.02	0.52	0.03				102835	25457	16441	5150	171762	9024				0.05	0.55				0.55	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_1103_dr3	38.9000	2.6000	-720	IDEA_1103_dr3	0.005	19.5	0.29	0.08	0.06	0.01	0.52	0.04				82806	21516	18260	4269	147694	10444				0.00	0.61				0.61	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_1103_dr5	39.8000	2.3000	-371	IDEA_1103_dr5	0.005	19.4	0.33	0.08	0.05	0.01	0.50	0.03				115759	26489	17909	4255	173028	8711				0.00	0.54				0.54	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_1103_dr6	39.8000	2.2000	-727	IDEA_1103_dr6	0.005	19.3	0.31	0.07	0.06	0.01	0.52	0.03				88067	21358	16736	3228	147795	9325				0.00	0.58				0.58	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_1103_dr8	39.8000	2.3000	-690	IDEA_1103_dr8	0.005	19.3	0.36	0.08	0.04	0.01	0.49	0.02	0.53	0.47	0.00	325621	72120	33978	13063	435271	13674	4213	3735		0.02	0.46				0.44	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_0204_dr5	39.7000	2.2000	-365	IDEA_0204_dr5	0.005	19.3	0.34	0.07	0.05	0.01	0.50	0.02	0.39	0.33	0.28	1473420	315004	210254	50222	2146736	91154	27385	23767	19880	0.04	0.53	1.46	0.89	1.63	0.51	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_0204_dr6	39.8000	2.3000	-678	IDEA_0204_dr6	0.005	19.3	0.33	0.07	0.06	0.01	0.50	0.03	0.42	0.33	0.24	496046	109227	87966	17008	741189	40600	9611	7615	5583	0.07	0.57	1.42	0.82	1.51	0.55	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
IDEA_0404_dr7	39.8000	2.3000	-355	IDEA_0404_dr7	0.005	19.4	0.33	0.07	0.05	0.01	0.51	0.02				119964	27014	16444	4695	183618	8538				0.02	0.52				0.52	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
HI-A	42.6000	3.7000	-334	HI-A	0.005	16.7	0.38	0.06	0.03	0.01	0.51	0.01	0.44	0.34	0.22	9415906	1515267	832502	234610	12648368	346861	229427	176072	114990	0.02	0.48	1.40	0.78	2.04	0.45	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HI-B	42.4000	3.9000	-1022	HI-B	0.005	16.8	0.34	0.06	0.05	0.01	0.52	0.02	0.48	0.33	0.20	35270200	6201545	5001488	829745	53499655	2312920	728267	501784	302910	0.01	0.57	1.38	0.72	1.46	0.54	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HI-D	42.6000	3.4000	-434	HI-D	0.005	16.7	0.41	0.06	0.03	0.01	0.49	0.01	0.47	0.33	0.19	10981583	1475804	679529	223865	12912985	249144	240906	169687	97267	0.02	0.44	1.36	0.72	1.88	0.40	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HI-E	42.4000	3.5000	-990	HI-E	0.005	16.8	0.36	0.06	0.04	0.01	0.50	0.02	0.53	0.35	0.12	661496	111348	77230	17878	909742	37425	16484	10959	3648	0.03	0.54	1.25	0.59	1.68	0.51	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HI-F	42.4000	3.8000	-1497	HI-F	0.005	16.8	0.27	0.05	0.05	0.01	0.59	0.03	0.46	0.33	0.22	1853045	355620	308777	55254	4066678	198664	64083	45914	30354	0.02	0.61	1.40	0.76	2.01	0.57	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HI-L	42.1000	4.7000	-2330	HI-L	0.005	17.0	0.32	0.07	0.07	0.01	0.50	0.03	0.49	0.32	0.19	1216534	252518	265215	30411	1889833	128331	23941	15861	9103	0.02	0.63	1.36	0.70	1.28	0.61	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HI-M	42.1000	3.6000	-398	HI-M	0.005	16.9	0.38	0.06	0.03	0.01	0.51	0.01	0.45	0.34	0.21	25515844	3789059	2185491	588624	34493110	893490	679858	502223	313357	0.03	0.49	1.38	0.75	2.17	0.45	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HII-C	42.4000	4.2000	-1530	HII-C'	0.005	16.8	0.31	0.06	0.07	0.01	0.52	0.03	0.47	0.33	0.20	7777246	1598309	1631842	181044	12822415	723891	123474	85152	51368	0.01	0.61	1.38	0.72	1.04	0.60	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HII-G	42.3000	3.6000	-950	HII-G'	0.005	16.8	0.34	0.06	0.05	0.01	0.52	0.02	0.47	0.33	0.20	26971554	4805744	3570230	649458	41010463	1602885	525510	364303	223404	0.01	0.55	1.38	0.73	1.40	0.52	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HII-H	42.2000	3.8000	-1500	HII-H'	0.005	16.8	0.34	0.06	0.05	0.01	0.52	0.02	0.46	0.33	0.21	14723191	2561631	2029705	343303	22144661	898539	274936	199460	124340	0.01	0.56	1.38	0.75	1.38	0.54	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HII-I	42.2000	4.3000	-1880	HII-I'	0.005	16.9	0.32	0.06	0.06	0.01	0.52	0.03	0.49	0.32	0.19	5364042	1051943	969246	133113	8657905	448948	105123	69336	42247	0.01	0.60	1.38	0.71	1.29	0.57	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HII-L	42.1000	4.7000	-2300	HII-L'	0.005	17.0	0.30	0.06	0.07	0.01	0.53	0.03	0.48	0.32	0.19	28977152	6013696	6754495	644344	50941929	3178062	564299	378028	221656	0.01	0.64	1.37	0.71	1.19	0.62	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HII-N	42.1000	3.8000	-1000	HII-N'	0.005	16.9	0.38	0.06	0.04	0.01	0.50	0.01	0.46	0.34	0.20	24066419	3620554	2240262	506775	31580219	885861	521266	381556	224144	0.02	0.50	1.37	0.74	1.76	0.47	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HII-O	42.1000	4.0000	-1880	HII-O'	0.005	16.9	0.28	0.06	0.06	0.01	0.56	0.03	0.45	0.34	0.21	2399318	482641	494025	61043	4767381	267578	49551	37267	23347	0.02	0.63	1.39	0.76	1.28	0.61	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HII-PLA	43.0000	5.2000	-1095	HII-PLA	0.005	17.2	0.34	0.06	0.05	0.01	0.52	0.02	0.47	0.33	0.21	25518350	4570717	3698581	589296	38372825	1654441	482619	336012	212635	0.01	0.57	1.39	0.74	1.37	0.54	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
HII-MIN	40.5000	4.0000	-2370	HII-MIN	0.005	18.8	0.31	0.06	0.07	0.01	0.52	0.03	0.48	0.32	0.20	27852827	5705999	5795625	644921	45821493	2618065	489162	327933	199396	0.01	0.61	1.38	0.71	1.14	0.59	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
MT34bis	42.7000	3.3000	-91	MT34bis	0.005	16.7	0.42	0.06	0.02	0.01	0.48	0.01	0.44	0.36	0.20	743473	99594	42572	17096	853334	15425	24478	20205	11481	0.05	0.43	1.36	0.77	3.07	0.38	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
MT37bis	42.6000	3.2000	-81	MT37bis	0.005	16.7	0.42	0.05	0.02	0.01	0.50	0.01	0.44	0.36	0.20	32802606	3628938	1322771	606788	39014614	419957	910609	738127	416640	0.06	0.39	1.36	0.76	2.59	0.34	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
MT353	42.7000	3.2000	-51	MT353	0.005	16.6	0.48	0.04	0.02	0.01	0.45	0.00	0.50	0.34	0.17	584881	54656	18519	9637	552758	6053	17925	12193	6016	0.11	0.38	1.33	0.67	2.86	0.32	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
MT11	43.2000	4.3000	-86	MT11	0.005	16.7	0.43	0.06	0.02	0.01	0.48	0.01				174826	23216	9179	3666	194233	3054				0.02	0.41				0.41	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
MT14	43.4000	4.2000	-43	MT14	0.005	16.6	0.44	0.04	0.02	0.01	0.48	0.01	0.46	0.35	0.19	339236	34072	12568	5556	372161	4076	13239	10225	5550	0.16	0.39	1.35	0.73	3.64	0.32	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
MT16	43.2000	4.1000	-92	MT16	0.005	16.6	0.38	0.05	0.02	0.01	0.52	0.01	0.43	0.34	0.24	260580	36188	15422	5913	357057	5896	12351	9815	6840	0.08	0.43	1.41	0.81	4.09	0.36	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
MT17	43.0000	4.2000	-93	MT17	0.005	16.7	0.40	0.05	0.02	0.01	0.51	0.01	0.43	0.34	0.23	3746568	504230	206876	85887	4865448	71288	119679	94076	64939	0.06	0.42	1.41	0.80	2.86	0.37	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
MT20	43.3000	3.4000	-29	MT20	0.005	16.5	0.47	0.04	0.02	0.01	0.46	0.00	0.48	0.34	0.18	1304718	120436	42589	21532	1282621	12625	39831	28082	14807	0.19	0.39	1.35	0.70	2.89	0.32	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
MT24	43.2000	3.7000	-81	MT24	0.005	16.6	0.42	0.05	0.02	0.01	0.50	0.01	0.44	0.35	0.21	10022561	1221371	464211	198263	11918839	145897	313987	244881	146759	0.05	0.40	1.37	0.76	2.86	0.34	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
MT25	43.0000	3.8000	-100	MT25	0.005	16.6	0.54	0.06	0.02	0.01	0.37	0.01	0.47	0.34	0.20	26771678	2838598	1097202	483533	18427335	338730	837744	599894	352433	0.12	0.40	1.37	0.73	3.46	0.34	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
MT29bis	42.9000	3.5000	-93	MT29bis	0.005	16.6	0.44	0.06	0.03	0.01	0.46	0.01	0.45	0.35	0.21	214209	28781	12362	4445	225065	3824	6596	5109	3097	0.02	0.42	1.38	0.76	2.94	0.37	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
MT31	42.8000	3.7000	-124	MT31	0.005	16.7	0.40	0.06	0.03	0.01	0.50	0.01	0.43	0.34	0.23	4154168	610076	268810	97364	5257807	95500	110314	87382	59822	0.03	0.43	1.41	0.80	2.40	0.39	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
MT33	43.0000	3.1000	-33	MT33	0.005	16.5	0.45	0.04	0.01	0.01	0.48	0.00	0.45	0.36	0.19	2232384	209241	72043	36373	2423108	24407	86514	70634	36931	0.16	0.39	1.34	0.74	3.74	0.31	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
T1	16.7210	82.2195	-26	T1	0.005	16.6	0.47	0.04	0.02	0.01	0.45	0.01	0.44	0.34	0.21	301457	27928	10800	4755	287441	4291	7964	6193	3835	0.27	0.42	1.38	0.77	2.75	0.36	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
T4	16.7124	82.3214	-48	T4	0.005	16.6	0.49	0.04	0.01	0.01	0.45	0.00	0.50	0.34	0.16	799931	65894	20374	11679	742311	7632	24665	16660	8158	0.14	0.38	1.33	0.67	2.92	0.30	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
T5	16.7329	82.3487	-59	T5	0.005	16.6	0.45	0.04	0.01	0.01	0.48	0.01	0.46	0.36	0.18	1121861	102808	36031	19940	1197763	13125	47957	37056	19285	0.24	0.40	1.34	0.73	4.02	0.31	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
T6	16.7654	82.3577	-48	T6	0.005	16.7	0.49	0.04	0.01	0.01	0.44	0.00	0.50	0.34	0.16	1763214	156397	52124	27759	1605369	16364	52200	35909	16851	0.10	0.38	1.32	0.66	2.82	0.32	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
BT-A	42.5000	5.0000	-1987	BT-A	0.005	16.8	0.32	0.07	0.06	0.01	0.52	0.03	0.49	0.32	0.20	3375776	685878	651481	85279	5430367	311813	66331	43365	26773	0.01	0.60	1.38	0.71	1.28	0.58	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
BT-B	42.7000	4.9000	-1488	BT-B	0.005	16.8	0.31	0.06	0.06	0.01	0.52	0.03	0.47	0.31	0.22	1348589	280784	270905	39892	2262291	134316	29694	19750	13722	0.03	0.61	1.41	0.75	1.44	0.59	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
BT-C	42.7000	4.8000	-980	BT-C	0.005	16.9	0.33	0.06	0.06	0.01	0.52	0.03	0.46	0.32	0.21	2830515	542489	475115	69164	4457270	218534	55251	38698	25458	0.02	0.58	1.40	0.75	1.37	0.56	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
BT-D	42.8000	4.7000	-745	BT-D	0.005	16.9	0.34	0.07	0.05	0.01	0.51	0.02	0.48	0.32	0.21	2254046	429322	339083	54043	3368501	158961	45997	30713	19789	0.02	0.56	1.39	0.73	1.44	0.54	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
BT-E	42.8000	4.7000	-552	BT-E	0.005	16.9	0.35	0.06	0.04	0.01	0.52	0.02	0.47	0.32	0.21	4913648	868030	619353	128943	7287414	299619	109438	74235	49101	0.02	0.55	1.40	0.74	1.62	0.52	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
BT-F	42.9000	4.7000	-343	BT-F	0.005	16.9	0.37	0.06	0.03	0.01	0.52	0.01	0.45	0.33	0.22	8440117	1323413	754355	201399	11806510	337782	184732	132970	88891	0.02	0.49	1.40	0.76	1.75	0.46	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
BT-G	42.9000	4.7000	-148	BT-G	0.005	16.9	0.39	0.06	0.03	0.01	0.49	0.01	0.42	0.35	0.23	579433	93721	44058	15463	718383	17346	17346	14760	9503	0.03	0.45	1.39	0.81	2.76	0.41	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_A	43.3000	4.9000	-8	Riomar A'	0.005	16.9	0.60	0.04	0.02	0.01	0.33	0.00	0.51	0.28	0.21	2049511	124810	58882	24776	1116096	15761	37430	20611	15500	0.74	0.44	1.43	0.70	2.12	0.38	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_B	43.3000	4.8000	-57	Riomar B	0.005	16.9	0.56	0.04	0.02	0.01	0.36	0.01	0.47	0.32	0.22	938275	73443	34401	15082	604124	12679	20411	13807	9383	0.60	0.46	1.40	0.75	2.53	0.40	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_C	43.3000	4.8000	-76	Riomar C	0.005	16.9	0.45	0.05	0.02	0.01	0.46	0.01				174752	18163	8134	3583	179866	3043				0.27	0.45				0.45	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_D	43.2000	4.7000	-73	Riomar D	0.005	16.9	0.45	0.04	0.02	0.01	0.47	0.01	0.46	0.36	0.19	725226	69214	26775	11736	760490	10113	23184	18149	9430	0.17	0.41	1.34	0.73	3.07	0.34	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_E	43.2000	4.7000	-75	Riomar E	0.005	16.8	0.44	0.05	0.02	0.01	0.48	0.01	0.45	0.34	0.20	591299	62504	24820	10826	644437	9986	19053	14331	8555	0.13	0.42	1.37	0.75	3.03	0.36	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_F	43.2000	4.7000	-78	Riomar F	0.005	16.8	0.43	0.05	0.02	0.01	0.49	0.01				180415	19819	8363	3089	206121	3033				0.10	0.42				0.42	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_G	43.3000	4.8000	-48	Riomar G	0.005	16.9	0.51	0.04	0.02	0.01	0.42	0.01	0.45	0.33	0.22	683111	58818	24282	11903	561791	7342	16300	12161	7991	0.43	0.43	1.40	0.77	2.63	0.37	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_H	43.3000	4.8000	-86	Riomar H	0.005	17.0	0.43	0.04	0.02	0.01	0.49	0.01	0.45	0.34	0.21	3911518	377444	159786	72853	4432503	57208	131961	99887	62023	0.24	0.43	1.38	0.76	3.16	0.36	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_I	43.3000	4.9000	-89	Riomar I	0.005	17.1	0.44	0.04	0.02	0.01	0.49	0.01	0.45	0.34	0.21	12234172	1250227	489686	225277	13743824	175535	341997	256732	154637	0.15	0.42	1.38	0.75	2.61	0.36	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_J	43.3000	4.9000	-86	Riomar J	0.005	17.1	0.42	0.05	0.02	0.01	0.49	0.01				181077	22259	8251	3207	211783	3201				0.12	0.40				0.40	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_K	43.3000	4.9000	-62	Riomar K'	0.005	16.9	0.52	0.04	0.02	0.01	0.40	0.01	0.45	0.33	0.22	6115006	502064	241339	107564	4683483	77885	145008	105723	71918	0.54	0.46	1.40	0.77	2.68	0.40	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_M	43.2000	4.7000	-91	Riomar M	0.005	16.9	0.41	0.06	0.02	0.01	0.49	0.01	0.46	0.33	0.22	1585106	218647	90924	39013	1880614	30502	56489	40447	27129	0.06	0.42	1.40	0.76	3.13	0.37	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_N	43.3000	4.8000	-65	Riomar N	0.005	16.9	0.48	0.04	0.02	0.01	0.44	0.01	0.46	0.33	0.21	2349642	211834	90476	42772	2161409	28654	59909	43589	27038	0.42	0.43	1.38	0.75	2.60	0.37	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_O	43.3000	4.8000	-79	Riomar O	0.005	17.0	0.47	0.05	0.02	0.01	0.45	0.01	0.42	0.34	0.24	304125	31282	12953	5851	292485	5001	6896	5477	3861	0.33	0.43	1.41	0.81	2.43	0.38	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_T	43.3000	4.9000	-14	Riomar T	0.005	16.9	0.66	0.04	0.02	0.01	0.27	0.01	0.46	0.27	0.27	1948226	107619	56582	22480	802692	19912	32301	19037	18610	0.89	0.48	1.49	0.80	2.31	0.41	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
Riomar_R2	43.2000	4.9000	-98	Riomar R2	0.005	17.1	0.39	0.05	0.02	0.01	0.53	0.01	0.42	0.34	0.24	3329753	384589	155500	71342	4427171	62605	110587	90806	62284	0.16	0.43	1.41	0.82	3.03	0.37	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
RHS-KS57	43.2900	4.8500		RHS-KS57	0.005	17.0	0.47	0.04	0.02	0.01	0.45	0.01	0.45	0.33	0.22	5392170	509871	222987	102410	5223629	80071	145858	108048	73597	0.39	0.44	1.41	0.78	2.76	0.38	"ASE extraction; apolar-ketone-polar separation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	Varma et al., 2023	doi:10.1016/j.gca.2023.12.019
MC601	27.7100	35.0500	-863	MC601	0.005	25.4	0.16	0.05	0.09	0.01	0.60	0.08	0.31	0.26	0.43	866124	288185	461806	76920	3140096	438222	15275	13126	21344	0.02	0.77	1.62	1.12	0.93	0.76	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
MC359	27.6900	34.6000	-1018	MC359	0.005	25.2	0.10	0.04	0.09	0.02	0.67	0.09	0.18	0.21	0.61	641755	275563	550622	107142	4243298	542364	6580	7426	22161	0.01	0.81	1.75	1.43	0.57	0.81	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
MC362	25.7500	35.0900	-666	MC362	0.005	25.7	0.11	0.05	0.10	0.02	0.63	0.10				154567	68046	145108	25521	922270	142716			5760	0.02	0.82			0.39	0.82	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
MC363	25.5200	35.6100	-941	MC363	0.005	26.1	0.11	0.05	0.11	0.02	0.62	0.10				103738	43369	104757	14899	594926	99120			3929	0.03	0.83			0.41	0.83	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
MC364	24.7600	36.2300	-1185	MC364	0.005	26.6	0.11	0.05	0.12	0.01	0.60	0.11				33899	14530	38363	4520	191346	34775				0.04	0.84				0.84	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
MC71	23.3900	36.9800	-1387	MC71	0.005	27.2	0.09	0.04	0.12	0.01	0.63	0.12				28924	11910	38620	3609	204531	37835				0.05	0.87				0.87	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
MC365	23.3100	36.7100	-1024	MC365	0.005	27.1	0.08	0.04	0.12	0.01	0.64	0.12				90589	42636	129933	13650	713955	131505				0.05	0.87				0.87	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
MC73	22.9200	37.3800	-1324	MC73	0.005	27.5	0.08	0.03	0.11	0.01	0.65	0.12				20217	8581	26602	3372	163675	29876				0.03	0.87				0.87	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
MC85	21.4300	37.9800	-1538	MC85	0.005	28.1	0.07	0.04	0.12	0.01	0.63	0.12				30465	15017	50203	5596	263378	51113				0.10	0.88				0.88	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
MC101	20.1100	38.4200	-2309	MC101	0.005	28.8	0.09	0.04	0.12	0.00	0.65	0.11				10705	4549	15193	0	81983	13298				0.06	0.86				0.86	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
MC113	19.6400	38.6100	-1991	MC113	0.005	28.9	0.08	0.04	0.11	0.01	0.65	0.11				60109	27247	78370	9791	486428	82120				0.05	0.86				0.86	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
MC367	15.5600	41.6700	-604	MC367	0.005	29.1	0.11	0.04	0.07	0.01	0.68	0.08	0.15	0.26	0.59	11774529	4361315	7807016	1336068	71659920	8950470	132974	222799	513062	0.03	0.81	1.70	1.44	0.81	0.80	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
MC359_7-8	27.6900	34.6000	-1018	MC359 7-8	0.005	25.2	0.11	0.05	0.10	0.02	0.63	0.09				44468	19813	38446	7492	251889	37472				0.02	0.81				0.81	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
MC367_6-7	15.5600	41.6700	-604	MC367 6-7	0.005	29.1	0.11	0.04	0.07	0.01	0.68	0.08	0.15	0.23	0.62	8752637	3316075	5966254	1044788	54735441	6600615	103116	161090	431549	0.03	0.80	1.73	1.47	0.86	0.80	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study
MC367_7-8	15.5600	41.6700	-604	MC367 7-8	0.005	29.1	0.12	0.04	0.07	0.01	0.68	0.08	0.15	0.26	0.59	11492274	4173611	7285365	1299229	67471049	8164920	136666	239974	538030	0.05	0.80	1.69	1.44	0.91	0.80	"ASE extraction; apolar-polar fractionation using Al2O3 chromatography"	" APCI; silica BEH HILIC columns; Hex:IPA gradient; Single quad; SIM; [M+H]+ ions; m/z 1300, 1298 and 1296 for OH-isoGDGTs"	This study