/* DATA DESCRIPTION:
Citation:	Yadav, Ramanand; Naik, Sushant S (2022): Calcium carbonate, sedimentary organic carbon, and shell weight of selected planktic foraminifera from ODP Hole 115-716A [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.949551
Abstract:	To understand the variations in carbonate burial for the last 30 kiloannum (ka), we have utilized a core from the Ocean DrillingProgram (ODP), Site716A (04.56°N and 73.17°E) retrieved from a water depth of 533 m from the Maldives (carbonate platform) Sea. We analyzed calcium carbonate (CaCO%), sedimentary organic carbon (C-org %) and shell weights of selected planktic foraminifera species (Globigerinoides ruber, Pulleniatina obliquiloculata and Neogloboquadrina dutertrei) to see the contrast in carbonate preservation during the late last glacial-Holocene. Our dataset reveals that carbonate preservation declined during the last glacial maximum (LGM) and the Holocene, probably due to organic matter degradation in sediments. The ratio of C-org/CaCO was relatively higher during the LGM than during the last deglacial period (LDP) and the Holocene. Furthermore, the heavier planktic foraminifera shell weights during the LDP indicate relatively increased carbonate preservation, which is linked to the deglacial release of carbon dioxide (CO₂) from the ocean to the atmosphere.
Keyword(s):	CaCO 3 %; carbonate preservation; Maldives carbonate platform; shell weights
Related to:	Yadav, Ramanand; Naik, Sushant S (2022): Glacial-interglacial differences in carbonate burial in the equatorial Indian Ocean. Geo-Marine Letters, 42(3), 12, https://doi.org/10.1007/s00367-022-00736-9
Project(s):	Ocean Drilling Program (ODP) (URI: https://www-odp.tamu.edu:443/)
Funding:	Department of Science and Technology (DST) (URI: https://dst.gov.in/), grant/award no. MLP 2014: Long-term evolution of monsoon and associated processes (LEMAP)
Coverage:	LATITUDE: 4.933300 * LONGITUDE: 73.283300
	DATE/TIME START: 1987-06-28T14:45:00 * DATE/TIME END: 1987-06-29T12:30:00
	MINIMUM DEPTH, sediment/rock: 0.20 m * MAXIMUM DEPTH, sediment/rock: 1.06 m
Event(s):	115-716A * LATITUDE: 4.933300 * LONGITUDE: 73.283300 * DATE/TIME START: 1987-06-28T14:45:00 * DATE/TIME END: 1987-06-29T12:30:00 * ELEVATION: -544.0 m * PENETRATION: 257.1 m * RECOVERY: 262.68 m * LOCATION: Lakshadweep Sea * CAMPAIGN: Leg115 * BASIS: Joides Resolution (URI: https://www-odp.tamu.edu:443/resolutn.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 27 cores; 257.1 m cored; 0 m drilled; 102.2 % recovery
Parameter(s):	DEPTH, sediment/rock [m] (Depth sed) * GEOCODE * PI: Yadav, Ramanand (https://orcid.org/0000-0001-9127-8865, ramanbhu248@gmail.com)
	AGE [ka BP] (Age) * GEOCODE * PI: Yadav, Ramanand (https://orcid.org/0000-0001-9127-8865, ramanbhu248@gmail.com)
	Calcium carbonate [%] (CaCO3) * PI: Yadav, Ramanand (https://orcid.org/0000-0001-9127-8865, ramanbhu248@gmail.com)
	Carbon, organic [%] (C org) * PI: Yadav, Ramanand (https://orcid.org/0000-0001-9127-8865, ramanbhu248@gmail.com)
	Carbon, organic/calcium carbonate ratio (C org/CaCO3) * PI: Yadav, Ramanand (https://orcid.org/0000-0001-9127-8865, ramanbhu248@gmail.com)
	Neogloboquadrina dutertrei, shell, weight [µg] (N. dutertrei shell W) * PI: Yadav, Ramanand (https://orcid.org/0000-0001-9127-8865, ramanbhu248@gmail.com)
	Pulleniatina obliquiloculata, shell, weight [µg] (P. obliquiloculata shell W) * PI: Yadav, Ramanand (https://orcid.org/0000-0001-9127-8865, ramanbhu248@gmail.com)
	Globigerinoides ruber, shell, weight [µg] (G. ruber shell W) * PI: Yadav, Ramanand (https://orcid.org/0000-0001-9127-8865, ramanbhu248@gmail.com)
License:	Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/)
Size:	246 data points
*/
Depth sed [m]	Age [ka BP]	CaCO3 [%]	C org [%]	C org/CaCO3	N. dutertrei shell W [µg]	P. obliquiloculata shell W [µg]	G. ruber shell W [µg]
0.20	4.39385	92.63379	0.7145	0.00771	24.71429	23.03030	22.08571
0.22	4.59754	88.07648	1.4844	0.01685	22.17143	22.85714	21.85714
0.24	4.80123	89.15560	1.4929	0.01674	22.85714	20.94286	19.42857
0.26	5.00492	89.59308	1.2744	0.01422	22.37143	22.94118	20.28571
0.28	5.20862	87.17568	1.8115	0.02078	25.45714	21.54286	21.42857
0.30	5.41231	91.33468	1.3794	0.01510	24.74286	21.80000	24.85714
0.32	5.61600	90.64137	1.5246	0.01682	27.00000	24.79412	20.20000
0.36	6.01347	88.66145	1.7952	0.02025	24.54286	22.96875	21.25714
0.38	6.21221	90.70221	1.4943	0.01647	24.71429	24.57143	19.70588
0.40	6.41095	89.68475	1.6484	0.01838	24.17143	22.85714	20.94286
0.42	6.60968	86.19739	2.1979	0.02550	24.62857	24.42857	21.06061
0.44	6.80842	90.82470	1.5826	0.01742	26.62857	24.28571	21.71429
0.46	7.00716	91.68383	1.5835	0.01727	26.85714	23.42857	21.85714
0.48	7.20589	93.36460	1.2138	0.01300	25.67647	23.17143	23.77143
0.50	7.40463	88.37813	1.7032	0.01927	25.91429	24.77143	24.00000
0.52	8.04853	89.97140	1.4800	0.01645	26.40000	23.91429	20.00000
0.54	9.13758	92.21381	1.2869	0.01396	27.48571	21.74286	24.31429
0.56	10.22663	92.57546	1.2975	0.01402	26.35294	24.80000	23.80000
0.58	11.31568	92.07465	1.3476	0.01464	25.29412	25.74286	22.28571
0.60	12.40474	91.69633	1.2620	0.01376	26.94118	25.97143	24.37143
0.62	13.49379	89.79891	1.6857	0.01877	28.00000	24.63636	24.08571
0.64	14.58284	91.32635	1.3944	0.01527	26.57143	26.28571	24.28571
0.68	16.76095	88.03815	1.6620	0.01888	29.08571	25.71429	24.60000
0.70	17.85000	87.43484	1.8044	0.02064	29.31429	24.60000	24.00000
0.72	18.38700	86.89652	1.8900	0.02175	28.23529	24.44118	23.94286
0.74	18.92400	91.91799	1.2204	0.01328	27.45714	24.45714	22.00000
0.76	19.46100	85.99573	1.9751	0.02297	28.88571	26.00000	21.25714
0.78	19.99800	82.93585	2.2823	0.02752	29.17143	26.31429	23.28571
0.80	20.53500	88.09148	1.6526	0.01876	27.22857	27.05882	19.85714
0.82	21.07200	90.59471	1.5762	0.01740	28.34286	22.00000	22.94286
0.84	21.60900	89.58808	1.6340	0.01824	27.88571	25.45714	24.69697
0.86	22.14600	86.57904	1.9531	0.02256	28.05714	18.31429	22.85714
0.88	22.68300	88.86311	1.6820	0.01893	29.94286	25.54286	21.42857
0.90	23.22000	86.85486	1.9880	0.02289	28.20000	26.00000	23.28571
0.92	24.08078	91.33551	1.3163	0.01441	28.74286	24.60000	22.37143
0.94	24.94156	87.43150	1.7698	0.02024	26.20000	24.37143	22.42857
0.96	25.80235	89.53975	1.6058	0.01793	26.26471	25.31429	22.37143
1.00	27.52391	89.13143	1.5688	0.01760	25.97059	24.77143	23.82353
1.02	28.38469	87.13485	1.8754	0.02152	27.14706	24.40000	23.74286
1.04	29.24548	86.50321	1.8982	0.02194	28.66667	24.41176	24.00000
1.06	30.10626	90.62721	1.4653	0.01617	26.42857	25.17143	22.57143