Citation:

PANGAEA.934701

Name: Glycerol dialkyl glycerol tetraethers in a Holocene sediment core (NGHP-01-16A) in front of the Godavari River in the Bay of Bengal (India)
Published: 2021-08-09
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Bay of Bengal; brGDGT; Godavari River; Holocene; Indian Summer Monsoon; isoGDGT; Sediment core

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Abstract:

Isoprenoid and branched Glycerol Dialkyl Glycerol Tetraethers (GDGTs) have been analysed in a marine sediment core (NGHP-01-16A) in front of the Godavari River in the Bay of Bengal (16.59331°N, 82.68345°E, 1268m m water depth). The core covers the Early to Late Holocene (~10000 years). The age model and %TOC are from Ponton et al. (2012) and Usman et al. (2018), respectively. TEX86 ratios and Sea Surface Temperatures were estimated following Kim et al. (2010).

Keyword(s):

Bay of Bengal; brGDGT; Godavari River; Holocene; Indian Summer Monsoon; isoGDGT; Sediment core

Supplement to:

Kirkels, Frédérique M S A; et al. (in review): From soil to sea: Sources and transport of organic carbon and sediments in the monsoonal Godavari River, India.

Related to:

Ponton, Camilo; Giosan, Liviu; Eglinton, Timothy Ian; Fuller, Dorian Q; Johnson, Joel E; Kumar, Pushpendra; Collett, Tim S (2012): Holocene aridification of India. Geophysical Research Letters, 39(3), L03704, https://doi.org/10.1029/2011GL050722

Usman, Muhammed Ojoshogu; Kirkels, Frédérique M S A; Zwart, Huub Michel; Basu, Sayak; Ponton, Camilo; Blattmann, Thomas Michael; Plötze, Michael; Haghipour, Negar; McIntyre, Cameron; Peterse, Francien; Lupker, Maarten; Giosan, Liviu; Eglinton, Timothy Ian (2018): Reconciling drainage and receiving basin signatures of the Godavari River system. Biogeosciences, 15(11), 3357-3375, https://doi.org/10.5194/bg-15-3357-2018

Further details:

Kim, Jung-Hyun; van der Meer, Jaap; Schouten, Stefan; Helmke, Peer; Willmott, Verónica; Sangiorgi, Francesca; Koç, Nalân; Hopmans, Ellen C; Sinninghe Damsté, Jaap S (2010): New indices and calibrations derived from the distribution of crenarchaeal isoprenoid tetraether lipids: Implications for past sea surface temperature reconstructions. Geochimica et Cosmochimica Acta, 74(16), 4639-4654, https://doi.org/10.1016/j.gca.2010.05.027

Funding:

Dutch Research Council (NWO), grant/award no. 863.13.016 : Veni grant: The dynamics of land-sea soil carbon transfer

Coverage:

Latitude: 16.593310 * Longitude: 82.683450

Minimum DEPTH, sediment/rock: 0.0 m * Maximum DEPTH, sediment/rock: 8.0 m

Event(s):

NGHP-01-16A * Latitude: 16.593310 * Longitude: 82.683450 * Elevation: -1253.0 m * Campaign: (India National Gas Hydrate Program Expedition 01) * Basis: Joides Resolution * Method/Device: Core drilling (CDRILL)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Sample ID	Sample ID		Kirkels, Frédérique M S A
2	Curator/sampler	Curator		Kirkels, Frédérique M S A
3	DEPTH, sediment/rock	Depth sed	m	Kirkels, Frédérique M S A		Geocode
4	DEPTH, sediment/rock	Depth sed	m	Kirkels, Frédérique M S A		Geocode – min
5	DEPTH, sediment/rock	Depth sed	m	Kirkels, Frédérique M S A		Geocode – max
6	Carbon, organic, total	TOC	%	Kirkels, Frédérique M S A		from Usman et al. (2018)
7	AGE	Age	ka BP	Kirkels, Frédérique M S A		Geocode – from Ponton et al. (2012) or Usman et al. (2018)
8	Description	Description		Kirkels, Frédérique M S A
9	Isoprenoid acyclic glycerol dialkyl glycerol tetraether, fractional abundance	iso GDGT-0		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
10	Isoprenoid monocyclic glycerol dialkyl glycerol tetraether, fractional abundance	iso GDGT-1		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
11	Isoprenoid dicyclic glycerol dialkyl glycerol tetraether, fractional abundance	iso GDGT-2		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
12	Isoprenoid tricyclic glycerol dialkyl glycerol tetraether, fractional abundance	iso GDGT-3		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
13	Crenarchaeol, fractional abundance	Cren		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
14	Crenarchaeol regio-isomer, fractional abundance	Cren'		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
15	Branched and isoprenoid tetraether index	BIT		Kirkels, Frédérique M S A
16	Tetraether index of 86 carbon atoms	TEX86		Kirkels, Frédérique M S A	Calculated according to Kim et al. (2010)
17	Sea surface temperature	SST	°C	Kirkels, Frédérique M S A	Calculated according to Kim et al. (2010)
18	Branched glycerol dialkyl glycerol tetraether, Ia, fractional abundance	brGDGT Ia		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
19	Branched glycerol dialkyl glycerol tetraether, Ib, fractional abundance	brGDGT Ib		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
20	Branched glycerol dialkyl glycerol tetraether, Ic, fractional abundance	brGDGT Ic		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
21	Branched glycerol dialkyl glycerol tetraether, IIa, fractional abundance	brGDGT IIa		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
22	Branched glycerol dialkyl glycerol tetraether, IIa', fractional abundance	brGDGT IIa'		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
23	Branched glycerol dialkyl glycerol tetraether, IIb, fractional abundance	brGDGT IIb		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
24	Branched glycerol dialkyl glycerol tetraether, IIb', fractional abundance	brGDGT IIb'		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
25	Branched glycerol dialkyl glycerol tetraether, IIc, fractional abundance	brGDGT IIc		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
26	Branched glycerol dialkyl glycerol tetraether, IIc', fractional abundance	brGDGT IIc'		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
27	Branched glycerol dialkyl glycerol tetraether, IIIa, fractional abundance	brGDGT IIIa		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
28	Branched glycerol dialkyl glycerol tetraether, IIIa', fractional abundance	brGDGT IIIa'		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
29	Branched glycerol dialkyl glycerol tetraether, IIIb, fractional abundance	brGDGT IIIb		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
30	Branched glycerol dialkyl glycerol tetraether, IIIb', fractional abundance	brGDGT IIIb'		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
31	Branched glycerol dialkyl glycerol tetraether, IIIc, fractional abundance	brGDGT IIIc		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
32	Branched glycerol dialkyl glycerol tetraether, IIIc', fractional abundance	brGDGT IIIc'		Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)
33	Branched glycerol dialkyl glycerol tetraether, per unit mass total organic carbon	brGDGT/TOC	µg/g	Kirkels, Frédérique M S A	Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130)

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

1439 data points

Data

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

1 Sample ID	2 Curator	3 Depth sed [m]	4 Depth sed [m] (min)	5 Depth sed [m] (max)	6 TOC [%] (from Usman et al. (2018))	7 Age [ka BP] (from Ponton et al. (2012) or ...)	8 Description	9 iso GDGT-0 (Ultra-high-performance liquid...)	10 iso GDGT-1 (Ultra-high-performance liquid...)	11 iso GDGT-2 (Ultra-high-performance liquid...)	12 iso GDGT-3 (Ultra-high-performance liquid...)	13 Cren (Ultra-high-performance liquid...)	14 Cren' (Ultra-high-performance liquid...)	15 BIT	16 TEX86 (Calculated according to Kim e...)	17 SST [°C] (Calculated according to Kim e...)	18 brGDGT Ia (Ultra-high-performance liquid...)	19 brGDGT Ib (Ultra-high-performance liquid...)	20 brGDGT Ic (Ultra-high-performance liquid...)	21 brGDGT IIa (Ultra-high-performance liquid...)	22 brGDGT IIa' (Ultra-high-performance liquid...)	23 brGDGT IIb (Ultra-high-performance liquid...)	24 brGDGT IIb' (Ultra-high-performance liquid...)	25 brGDGT IIc (Ultra-high-performance liquid...)	26 brGDGT IIc' (Ultra-high-performance liquid...)	27 brGDGT IIIa (Ultra-high-performance liquid...)	28 brGDGT IIIa' (Ultra-high-performance liquid...)	29 brGDGT IIIb (Ultra-high-performance liquid...)	30 brGDGT IIIb' (Ultra-high-performance liquid...)	31 brGDGT IIIc (Ultra-high-performance liquid...)	32 brGDGT IIIc' (Ultra-high-performance liquid...)	33 brGDGT/TOC [µg/g] (Ultra-high-performance liquid...)
NGHP-16A 0 cm	Ponton et al. (2012)	0.0				0.000	Late Holocene	0.1328004	0.0536380	0.0821217	0.0223083	0.6547538	0.0543779	0.065307938	-0.126376370	29.95585631
NGHP-16A 20 cm	Ponton et al. (2012)	0.2				0.147	Late Holocene	0.1406640	0.0597066	0.0868413	0.0230119	0.6373160	0.0524603	0.062492648	-0.136037593	29.29502861
NGHP-16A 24-29 cm	Usman et al. (2018)		0.24	0.29	1.2	0.180	Late Holocene										0.369962455	0.142163453	0.054912027	0.041196018	0.085832447	0.020650774	0.052968459	0.004161381	0.016699111	0.057346780	0.086390441	0.004211346	0.006200904	0.000475955	0.000281728	8.430905834
NGHP-16A 33-37 cm	Usman et al. (2018)		0.33	0.37	1.3	0.260	Late Holocene										0.369064777	0.141341333	0.056510905	0.044503294	0.084781446	0.019208416	0.053322914	0.003814721	0.016871576	0.059340933	0.087017347	0.004265663	0.006232250	0.000685340	0.000413070	6.412589226
NGHP-16A 40 cm	Ponton et al. (2012)	0.4				0.294	Late Holocene	0.1446901	0.0551461	0.0847666	0.0223860	0.6347256	0.0582856	0.049292002	-0.124938737	30.05419042
NGHP-16A 46-51 cm	Usman et al. (2018)		0.46	0.51	1.3	0.320	Late Holocene										0.320151704	0.121426028	0.048996075	0.038513180	0.071322251	0.016449712	0.048316335	0.004148482	0.015888587	0.051682041	0.076619560	0.004025015	0.005905365	0.000623865	0.000366710	5.150274544
NGHP-16A 51-58 cm	Usman et al. (2018)		0.51	0.58	1.3	0.390	Late Holocene										0.336412104	0.127361073	0.048079862	0.042995263	0.080522317	0.018912161	0.052950508	0.004037589	0.017601352	0.063171908	0.092354733	0.004692605	0.000656269	0.000481097	0.002082814	3.060553819
NGHP-16A 60 cm	Ponton et al. (2012)	0.6				0.442	Late Holocene	0.1514523	0.0623395	0.0875586	0.0230332	0.6204923	0.0551241	0.064632752	-0.138676080	29.11455613
NGHP-16A 62-70 cm	Usman et al. (2018)		0.62	0.70	1.4	0.460	Late Holocene										0.361985604	0.138003957	0.051012473	0.047844336	0.086855888	0.019319864	0.049145338	0.003885193	0.015641185	0.062524309	0.083962533	0.004035177	0.005742083	0.000645787	0.000402858	4.703467585
NGHP-16A 73-78 cm	Usman et al. (2018)		0.73	0.78	1.4	0.590	Late Holocene										0.375561385	0.148081335	0.056889795	0.046337275	0.088194418	0.019015126	0.048859022	0.004021902	0.015616093	0.058508627	0.080895702	0.003672743	0.005193468	0.000551842	0.000367613	7.098815973
NGHP-16A 80 cm	Ponton et al. (2012)	0.8				0.600	Late Holocene	0.1404702	0.0557279	0.0821411	0.0218109	0.6473237	0.0525263	0.047263716	-0.132303920	29.55041189
NGHP-16A 82-86 cm	Usman et al. (2018)		0.82	0.86	1.3	0.620	Late Holocene										0.356494966	0.130744518	0.049969830	0.048658728	0.086342735	0.018565165	0.045594872	0.003899225	0.014271966	0.052429767	0.072850411	0.003697097	0.005341320	0.000624523	0.000330920	2.983059476
NGHP-16A 86-92 cm	Usman et al. (2018)		0.86	0.92	1.3	0.660	Late Holocene										0.368597177	0.133700095	0.052035814	0.044819706	0.078646787	0.016903965	0.042376851	0.003369247	0.012677626	0.046679738	0.061959884	0.003302920	0.004568935	0.000384748	0.000309238	2.948147994
NGHP-16A 92-96 cm	Usman et al. (2018)		0.92	0.96	1.4	0.700	Late Holocene										0.359667155	0.122914634	0.049160179	0.051117089	0.083223928	0.019127919	0.047296224	0.004367994	0.014943521	0.061087923	0.081993487	0.004243381	0.005891934	0.000657308	0.000431636	3.306559470
NGHP-16A 100 cm	Ponton et al. (2012)	1.0				0.761	Late Holocene	0.1452152	0.0567467	0.0845914	0.0222644	0.6379602	0.0532221	0.048761335	-0.131777255	29.58643576
NGHP-16A 101-106 cm	Usman et al. (2018)		1.01	1.06	1.4	0.780	Late Holocene										0.380565266	0.142411378	0.056908542	0.046444581	0.083375896	0.018502986	0.050390696	0.004234695	0.016751159	0.049250679	0.066927712	0.003535123	0.005715771	0.000585986	0.000418773	3.967771457
NGHP-16A 106-111 cm	Usman et al. (2018)		1.06	1.11	1.4	0.820	Late Holocene										0.337277417	0.126445912	0.048829785	0.044203013	0.080997150	0.018344012	0.046270126	0.004093624	0.014058884	0.047894496	0.067888006	0.003585416	0.005283954	0.000622701	0.000440467	2.205712498
NGHP-16A 111-118 cm	Usman et al. (2018)		1.11	1.18	1.4	0.840	Late Holocene										0.380711490	0.134401901	0.052722708	0.047400607	0.088613790	0.019415501	0.050333433	0.003952248	0.015429456	0.056253551	0.076064927	0.003935908	0.005789621	0.000650861	0.000407953	5.236945132
NGHP-16A 120 cm	Ponton et al. (2012)	1.2				0.921	Late Holocene	0.1969120	0.0646791	0.0742612	0.0214821	0.5988809	0.0437847	0.036387771	-0.165409557	27.28598630
NGHP-16A 121-126 cm	Usman et al. (2018)		1.21	1.26	1.4	0.980	Late Holocene										0.367007973	0.127673999	0.051971919	0.051310848	0.088087611	0.019160749	0.051246612	0.003972799	0.016074798	0.058126562	0.083718448	0.004153804	0.006363075	0.000646339	0.000411688	4.368229899
NGHP-16A 126-135 cm	Usman et al. (2018)		1.26	1.35	1.4	1.000	Late Holocene										0.365041194	0.141761652	0.057981085	0.047211343	0.086071681	0.018367767	0.054267543	0.004181166	0.017891823	0.055052792	0.081230679	0.003974289	0.006386963	0.000651141	0.000432059	5.067879388
NGHP-16A 140 cm	Ponton et al. (2012)	1.4				1.082	Late Holocene
NGHP-16A 160 cm	Ponton et al. (2012)	1.6				1.171	Late Holocene	0.1428999	0.0548147	0.0830288	0.0239608	0.6382488	0.0570470	0.052746114	-0.125208310	30.03575163
NGHP-16A 161-166 cm	Usman et al. (2018)		1.61	1.66	1.4	1.180	Late Holocene										0.338326136	0.123735382	0.047616471	0.038320122	0.069126940	0.016353019	0.039128526	0.003227967	0.012819694	0.043170044	0.061770227	0.003102420	0.004805373	0.000789203	0.000304508	1.550956726
NGHP-16A 170 cm	Ponton et al. (2012)	1.7				1.215	Late Holocene	0.1325980	0.0538606	0.0800282	0.0211218	0.6571227	0.0552687	0.042355439	-0.128507856	29.81006266
NGHP-16A 180-185 cm	Usman et al. (2018)		1.80	1.85	1.4	1.240	Late Holocene										0.343191742	0.134298782	0.049755646	0.049396170	0.085748768	0.020394410	0.052220744	0.003971447	0.015875439	0.048946826	0.076012543	0.004019694	0.006102529	0.000665077	0.000387541	2.891071892
NGHP-16A 185-188 cm	Usman et al. (2018)		1.85	1.88	1.4	1.280	Late Holocene										0.366633407	0.140785022	0.052631082	0.048068141	0.092543183	0.019146752	0.049746700	0.003725225	0.014028830	0.042854125	0.065421245	0.003442365	0.005317036	0.000523754	0.000375212	3.283264702
NGHP-16A 190 cm	Ponton et al. (2012)	1.9				1.304	Late Holocene	0.1412928	0.0571122	0.0831134	0.0214374	0.6452623	0.0517818	0.052411939	-0.135236034	29.34985529
NGHP-16A 204-208 cm	Usman et al. (2018)		2.04	2.08	1.5	1.320	Late Holocene										0.359929590	0.134756868	0.051813086	0.051107203	0.094557038	0.020272440	0.052991520	0.004270841	0.016551085	0.059282708	0.086728838	0.004090522	0.006402169	0.000707131	0.000375376	5.502213401
NGHP-16A 210 cm	Ponton et al. (2012)	2.1				1.393	Late Holocene	0.1360620	0.0543133	0.0825294	0.0233090	0.6446216	0.0591647	0.054888294	-0.123578981	30.14719768
NGHP-16A 220 cm	Ponton et al. (2012)	2.2				1.437	Late Holocene	0.1377193	0.0560486	0.0822045	0.0236876	0.6458929	0.0544472	0.047236592	-0.130192916	29.69480456
NGHP-16A 229-234 cm	Usman et al. (2018)		2.29	2.34	1.6	1.390	Late Holocene										0.366639891	0.142376308	0.054889243	0.044444213	0.087427922	0.018011207	0.050983140	0.003937445	0.015399780	0.045447391	0.068387506	0.003248119	0.005348374	0.000576795	0.000411356	3.004062523
NGHP-16A 234-239 cm	Usman et al. (2018)		2.34	2.39	1.6	1.430	Late Holocene										0.362838117	0.134907336	0.053750089	0.052332916	0.082443488	0.019570883	0.052467143	0.004529020	0.015703680	0.058221223	0.076961457	0.004227668	0.006216474	0.000679230	0.000488454	3.460906804
NGHP-16A 240 cm	Ponton et al. (2012)	2.4				1.526	Late Holocene	0.1396299	0.0544897	0.0821603	0.0230162	0.6470655	0.0536383	0.046467759	-0.128109056	29.83734059
NGHP-16A 250 cm	Ponton et al. (2012)	2.5				1.571	Late Holocene	0.1454076	0.0586267	0.0894306	0.0245437	0.6260144	0.0559769	0.046321526	-0.128710013	29.79623513
NGHP-16A 260 cm	Ponton et al. (2012)	2.6				1.615	Late Holocene	0.1392879	0.0551794	0.0814298	0.0212349	0.6482243	0.0546437	0.050858009	-0.130582101	29.66818432
NGHP-16A 260-268 cm	Usman et al. (2018)		2.60	2.68	1.6	1.590	Late Holocene										0.366630933	0.127669775	0.050250454	0.046736470	0.077645591	0.018256556	0.047782093	0.004487273	0.014373782	0.058974825	0.078416722	0.004433117	0.006513481	0.000818516	0.000537438	2.818447174
NGHP-16A 280 cm	Ponton et al. (2012)	2.8				1.704	Late Holocene	0.1727356	0.0714459	0.1002419	0.0283168	0.5647070	0.0625529	0.031992813	-0.137937327	29.16508684
NGHP-16A 280-287 cm	Usman et al. (2018)		2.80	2.87	1.7	1.709	Late Holocene										0.379531534	0.130941906	0.052565635	0.048868615	0.076985512	0.021869946	0.043411404	0.004773723	0.013892858	0.051061352	0.068697138	0.004530244	0.005954483	0.000758210	0.000464019	2.620010018
NGHP-16A 300 cm	Ponton et al. (2012)	3.0				1.903	Late Holocene	0.1362611	0.0558292	0.0826399	0.0215693	0.6529179	0.0507825	0.040621433	-0.133605244	29.46140128
NGHP-16A 307-311 cm	Usman et al. (2018)		3.07	3.11	1.7	1.830	Late Holocene										0.365523225	0.131650922	0.054937023	0.047954053	0.075144161	0.021394853	0.044146789	0.004603040	0.014423590	0.056424384	0.073907362	0.004527337	0.006140666	0.000819239	0.000519348	2.579151917
NGHP-16A 320 cm	Ponton et al. (2012)	3.2				2.101	Late Holocene	0.1378182	0.0572807	0.0857057	0.0240751	0.6374090	0.0577114	0.044976447	-0.127749354	29.86194421
NGHP-16A 329-334 cm	Usman et al. (2018)		3.29	3.34	1.5	2.100	Late Holocene										0.402091312	0.129736051	0.053964192	0.051409629	0.080990244	0.018160732	0.041863573	0.003915670	0.012132347	0.044541143	0.062396673	0.004004271	0.005427171	0.000754169	0.000434999	3.240205673
NGHP-16A 334-339 cm	Usman et al. (2018)		3.34	3.39	1.9	2.125	Late Holocene										0.385946469	0.128430936	0.055820920	0.051943879	0.081596452	0.019578920	0.048343969	0.004759231	0.014884325	0.055582255	0.073734549	0.004706641	0.006763596	0.000909215	0.000620871	3.484631595
NGHP-16A 340 cm	Ponton et al. (2012)	3.4				2.300	Late Holocene	0.1410816	0.0563439	0.0829631	0.0221891	0.6477332	0.0496891	0.042139498	-0.134776712	29.38127292
NGHP-16A 353-359 cm	Usman et al. (2018)		3.53	3.59	1.8	2.380	Late Holocene										0.365149808	0.123040954	0.052884187	0.048522108	0.075619958	0.018362667	0.046400722	0.004813487	0.015778977	0.049605887	0.068588634	0.004442580	0.006770129	0.000838145	0.000693542	2.124528389
NGHP-16A 360 cm	Ponton et al. (2012)	3.6				2.498	Late Holocene	0.1426761	0.0580516	0.0895303	0.0233433	0.6295736	0.0568252	0.044605745	-0.127780425	29.85981892
NGHP-16A 380 cm	Ponton et al. (2012)	3.8				2.697	Late Holocene	0.1417860	0.0559404	0.0830310	0.0212193	0.6473603	0.0506630	0.038623710	-0.133892452	29.44175628
NGHP-16A 382-389 cm	Usman et al. (2018)		3.82	3.89	1.9	2.750	Late Holocene										0.346350245	0.127621715	0.061485617	0.051959278	0.073580552	0.024319973	0.061017558	0.005227341	0.022566605	0.068857941	0.086971581	0.005476539	0.009003902	0.001054425	0.000795431	4.171526971
NGHP-16A 389-394 cm	Usman et al. (2018)		3.89	3.94	1.9	2.790	Late Holocene										0.342343506	0.120916387	0.056582122	0.052619023	0.072930701	0.023502646	0.056950480	0.005372108	0.020457118	0.067393845	0.089817766	0.005900350	0.009090078	0.001160848	0.000751983	3.546233713
NGHP-16A 400 cm	Ponton et al. (2012)	4.0				2.895	Late Holocene	0.1381249	0.0557881	0.0837120	0.0224229	0.6457785	0.0541736	0.039145907	-0.129691334	29.72911274
NGHP-16A 406-411 cm	Usman et al. (2018)		4.06	4.11	1.9	3.000	Late Holocene										0.347731858	0.123206788	0.056456669	0.047727072	0.072045773	0.020757194	0.050520476	0.004920588	0.017726678	0.057963130	0.079412600	0.005251918	0.007991657	0.001005374	0.000697614	2.224385153
NGHP-16A 411-415 cm	Usman et al. (2018)		4.11	4.15	2.0	3.100	Late Holocene										0.353012587	0.123312583	0.056792923	0.049991128	0.073108974	0.020174328	0.052450232	0.005142183	0.018712221	0.057270093	0.077999662	0.005340255	0.007794988	0.001034495	0.000678949	2.518895132
NGHP-16A 420 cm	Ponton et al. (2012)	4.2				3.186	Late Holocene	0.1420436	0.0550194	0.0816301	0.0204386	0.6508833	0.0499850	0.044674302	-0.134126775	29.42572860
NGHP-16A 428-434 cm	Usman et al. (2018)		4.28	4.34	2.0	3.240	Late Holocene										0.346909922	0.122708388	0.058336260	0.049167227	0.073509070	0.021601709	0.053374320	0.005255310	0.019339535	0.060555586	0.084216973	0.005360150	0.008270983	0.001046559	0.000845641	2.277257936
NGHP-16A 440 cm	Ponton et al. (2012)	4.4				3.477	Late Holocene	0.1461447	0.0580462	0.0897452	0.0239183	0.6257462	0.0563995	0.044385766	-0.127532955	29.87674587
NGHP-16A 455-460 cm	Usman et al. (2018)		4.55	4.60	1.9	3.650	Late Holocene										0.352466198	0.133264015	0.068289321	0.051104904	0.075741221	0.023679890	0.057198684	0.005270072	0.021314622	0.064761389	0.086817897	0.006306732	0.008852893	0.001249554	0.000795703	5.555918643
NGHP-16A 460 cm	Ponton et al. (2012)	4.6				3.769	Late Holocene	0.1383522	0.0552234	0.0798977	0.0206658	0.6550436	0.0508173	0.039038894	-0.135068355	29.36132449
NGHP-16A 472-477 cm	Usman et al. (2018)		4.72	4.77	2.0	4.040	Late Holocene										0.361445364	0.123461093	0.059347447	0.048583580	0.074565625	0.022427815	0.051715670	0.005111085	0.018559773	0.064021171	0.084774067	0.005125703	0.008911120	0.001170048	0.000795489	3.036948040
NGHP-16A 480 cm	Ponton et al. (2012)	4.8				4.115	Late Holocene	0.1379683	0.0550070	0.0870193	0.0238514	0.6402453	0.0559087	0.044285907	-0.123792491	30.13259360
NGHP-16A 493-500 cm	Usman et al. (2018)		4.93	5.00	2.0	4.360	Late Holocene										0.372003407	0.126221182	0.057542744	0.046830315	0.070734516	0.020295463	0.046826502	0.005113809	0.015985401	0.056551311	0.079227280	0.005213105	0.007397498	0.001023749	0.000647508	2.268368014
NGHP-16A 500 cm	Ponton et al. (2012)	5.0				4.462	Late Holocene	0.1402677	0.0547386	0.0812526	0.0202646	0.6500209	0.0534557	0.044843048	-0.131366527	29.61452958
NGHP-16A 512-516 cm	Usman et al. (2018)		5.12	5.16	2.1	4.700	Late Holocene										0.356815142	0.126455823	0.054793688	0.048484039	0.078464394	0.021728397	0.046612119	0.004996110	0.015143541	0.059258740	0.079196768	0.004834742	0.007560802	0.001038589	0.000760556	2.422349674
NGHP-16A 516-520 cm	Usman et al. (2018)		5.16	5.20	2.1	4.780	Early Holocene										0.357518166	0.125778308	0.055677223	0.047074625	0.076779643	0.018987830	0.044865039	0.004419223	0.014083009	0.050196711	0.068145548	0.004141266	0.006517736	0.000968517	0.000662401	1.669793952
NGHP-16A 520 cm	Ponton et al. (2012)	5.2				4.809	Early Holocene	0.1383263	0.0547191	0.0810088	0.0226213	0.6488345	0.0544899	0.047067919	-0.129064709	29.77197392
NGHP-16A 532-539 cm	Usman et al. (2018)		5.32	5.39	2.1	4.940	Early Holocene										0.399582555	0.132897195	0.062374431	0.050626786	0.078454136	0.020392124	0.046602179	0.004840340	0.015170598	0.056716376	0.073335363	0.004711576	0.007067071	0.001077178	0.000650136	4.146080336
NGHP-16A 540 cm	Ponton et al. (2012)	5.4				5.106	Early Holocene	0.1396178	0.0545032	0.0813815	0.0200623	0.6495587	0.0548765	0.043910341	-0.129903672	29.71458885
NGHP-16A 560 cm	Ponton et al. (2012)	5.6				5.403	Early Holocene	0.1511406	0.0583492	0.0834718	0.0226508	0.6280643	0.0563232	0.043505091	-0.133280752	29.48359659
NGHP-16A 562-569 cm	Usman et al. (2018)		5.62	5.69	2.1	5.300	Early Holocene										0.363744376	0.122787645	0.061893335	0.050708350	0.077060460	0.022746978	0.050654461	0.005636542	0.019065615	0.066644761	0.088361514	0.006474576	0.008756648	0.001348604	0.000847933	4.040299829
NGHP-16A 580 cm	Ponton et al. (2012)	5.8				5.699	Early Holocene	0.1461434	0.0550187	0.0770262	0.0196357	0.6533470	0.0488291	0.042339723	-0.139299284	29.07192899
NGHP-16A 584-589 cm	Usman et al. (2018)		5.84	5.89	2.0	5.680	Early Holocene										0.375172346	0.119519336	0.058449799	0.049026220	0.074756642	0.022206894	0.046117220	0.005588229	0.016511551	0.062278504	0.079611362	0.005908828	0.007971798	0.001254949	0.000859482	2.851687018
NGHP-16A 600 cm	Ponton et al. (2012)	6.0				5.996	Early Holocene	0.1443464	0.0553328	0.0814399	0.0214738	0.6433217	0.0540854	0.048931349	-0.131118138	29.63151934
NGHP-16A 615-618 cm	Usman et al. (2018)		6.15	6.18	2.0	6.280	Early Holocene										0.387847419	0.122117252	0.058831576	0.047073770	0.074471109	0.021061214	0.046293670	0.005365444	0.016697661	0.065640742	0.080466389	0.005357961	0.008136987	0.001357171	0.000871019	3.509254042
NGHP-16A 618-622 cm	Usman et al. (2018)		6.18	6.22	1.9	6.380	Early Holocene										0.381499324	0.125252430	0.061890130	0.046705098	0.075951304	0.020953532	0.045112924	0.005319579	0.016217842	0.064679609	0.079978670	0.005512258	0.007596799	0.001321479	0.000825722	3.934616117
NGHP-16A 620 cm	Ponton et al. (2012)	6.2				6.468	Early Holocene	0.1476334	0.0591064	0.0800454	0.0195761	0.6440741	0.0495645	0.041792704	-0.144945257	28.68574440
NGHP-16A 640 cm	Ponton et al. (2012)	6.4				6.940	Early Holocene	0.1426161	0.0563311	0.0798024	0.0195700	0.6482551	0.0534252	0.040487300	-0.136297160	29.27727423
NGHP-16A 650 cm	Ponton et al. (2012)	6.5				7.176	Early Holocene	0.1435833	0.0575225	0.0833854	0.0225631	0.6376527	0.0552930	0.042645779	-0.132499122	29.53706005
NGHP-16A 656-659 cm	Usman et al. (2018)		6.56	6.59	1.9	7.100	Early Holocene										0.361717566	0.114499022	0.055680462	0.045952210	0.071336149	0.021483881	0.047556060	0.005708860	0.017565675	0.065784044	0.083168191	0.006510261	0.008396563	0.001393142	0.000868249	2.356069625
NGHP-16A 660 cm	Ponton et al. (2012)	6.6				7.412	Early Holocene	0.1506821	0.0559898	0.0807594	0.0200501	0.6424632	0.0500554	0.049582227	-0.137077141	29.22392354
NGHP-16A 659-662 cm	Usman et al. (2018)		6.59	6.62	1.9	7.240	Early Holocene										0.366487241	0.115819089	0.056425553	0.047015566	0.078249062	0.022684726	0.050654556	0.005584793	0.018509286	0.076693491	0.091682251	0.006893934	0.009130752	0.001448755	0.001000266	4.619379246
NGHP-16A 680 cm	Ponton et al. (2012)	6.8				7.884	Early Holocene	0.1387619	0.0543427	0.0810014	0.0204637	0.6527964	0.0526338	0.040961296	-0.131184877	29.62695443
NGHP-16A 681-684 cm	Usman et al. (2018)		6.81	6.84	1.8	7.800	Early Holocene										0.381625334	0.114998728	0.055329193	0.046163657	0.079624161	0.019843251	0.044229073	0.004739370	0.014477918	0.055630969	0.073107412	0.004892752	0.007868544	0.001087624	0.000731545	4.028590976
NGHP-16A 684-688 cm	Usman et al. (2018)		6.84	6.88	1.8	7.900	Early Holocene										0.383779564	0.121287426	0.058125584	0.045540471	0.075771390	0.020879979	0.050496049	0.005447287	0.017441041	0.066496681	0.083171103	0.006259547	0.008776339	0.001238918	0.000870156	4.635139129
NGHP-16A 700 cm	Ponton et al. (2012)	7.0				8.356	Early Holocene	0.1544351	0.0550887	0.0773109	0.0203548	0.6423903	0.0504202	0.058434693	-0.137355708	29.20486957
NGHP-16A 704-709 cm	Usman et al. (2018)		7.04	7.09	1.6	8.400	Early Holocene										0.404042538	0.124201274	0.060131202	0.045634502	0.077232472	0.021045792	0.043748564	0.005509046	0.015152006	0.059353936	0.077859633	0.006117796	0.007476136	0.001190770	0.000674829	5.309945370
NGHP-16A 720 cm	Ponton et al. (2012)	7.2				8.949	Early Holocene	0.1535948	0.0566934	0.0788078	0.0193251	0.6393084	0.0522705	0.047722746	-0.138915696	29.09816641
NGHP-16A 740 cm	Ponton et al. (2012)	7.4				9.541	Early Holocene	0.1530259	0.0554065	0.0800443	0.0223778	0.6364306	0.0527149	0.063956148	-0.132626467	29.52834965
NGHP-16A 760 cm	Ponton et al. (2012)	7.6				10.134	Early Holocene	0.1624738	0.0553769	0.0788860	0.0224220	0.6321329	0.0487083	0.062504963	-0.136447706	29.26697691
NGHP-16A 780 cm	Ponton et al. (2012)	7.8				10.726	Early Holocene	0.1599557	0.0570856	0.0811370	0.0208508	0.6317092	0.0492617	0.045699190	-0.139068601	29.08770772
NGHP-16A 800 cm	Ponton et al. (2012)	8.0				11.319	Early Holocene	0.2040436	0.0684804	0.0810584	0.0212429	0.5776577	0.0475170	0.023491780	-0.163486244	27.41754090