Citation:

PANGAEA.996263

Name: Coccolith abundance, assemblage structure, and sedimentological properties along core DA12‑11/2‑ST1‑GC01
Published: 2026-07-31
License: https://creativecommons.org/licenses/by/4.0/
Keywords: absolute abundance; assemblage dynamics; Atlantic Water; coccolith assemblages; hydrographic interpretation; Micropaleontology; Paleoceanography; quantitative microscopy; sediment core DA12 11/2 ST1 GC01; SEM; taxon ecology

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Published: 2026-07-31

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Abstract:

This dataset presents a high resolution sequence of coccolithophore assemblages and absolute abundances from 0–419 cm in core DA12 11/2 ST1 GC01, capturing fine scale ecological variability across predominantly dark grey calcareous ooze interspersed with discrete ash layers. Coccolith counts range from extremely low values in ash dominated horizons to >900 specimens in more stable intervals, with absolute abundances varying by over two orders of magnitude. Assemblages are consistently dominated by Coccolithus pelagicus, Gephyrocapsa spp., and Emiliania huxleyi, whose shifting proportions delineate transitions between cool, stratified, and nutrient rich surface water states. Upper Holocene samples show strong C. pelagicus dominance with intermittent increases in E. huxleyi, reflecting oscillations between Atlantic influenced and Polar modified waters. Mid core intervals exhibit pronounced rises in Gephyrocapsa spp., marking episodes of enhanced small form productivity and possible changes in mixing intensity. Occasional occurrences of Helicosphaera carteri, Syracosphaera pulchra, Umbilicosphaera spp., and rare Pontosphaera taxa indicate intermittent incursions of warmer or more oligotrophic conditions. Ash layers consistently show reduced counts, simplified assemblages, and strong dominance by a single taxon, reflecting ecological suppression during volcanic deposition. Across the full sequence, the interplay between dominant and accessory taxa reveals coherent patterns of hydrographic restructuring, including shifts in thermal regimes, salinity gradients, nutrient supply, and stratification intensity. These assemblage variations provide a detailed ecological fingerprint of Holocene surface water dynamics in the Iceland Basin and form the basis for subsequent derivation of ecological contrasts and hydrographic indices.

Keyword(s):

absolute abundance; assemblage dynamics; Atlantic Water; coccolith assemblages; hydrographic interpretation; Micropaleontology; Paleoceanography; quantitative microscopy; sediment core DA12 11/2 ST1 GC01; SEM; taxon ecology

Related to:

Ukpabi, Ndubuisi; Seidenkrantz, Marit-Solveig (in press): Holocene hydrography of the Iceland Basin from coccolith ecological contrasts: A multi‑axis index for salinity and stratification. Marine Micropaleontology

Coverage:

Latitude: 61.608930 * Longitude: -20.702730

Date/Time Start: 2025-09-12T14:20:00 * Date/Time End: 2025-09-12T14:20:00

Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 4.180 m

Event(s):

DA12-11/2-GC01 (G1) * Latitude: 61.608930 * Longitude: -20.702730 * Date/Time: 2025-09-12T14:20:00 * Elevation: -2120.0 m * Location: Iceland Basin * Campaign: * Basis: Dana (1981) * Method/Device: Gravity corer (GC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Ukpabi, Ndubuisi		Geocode
2	Depth, top/min	Depth top	m	Ukpabi, Ndubuisi
3	Depth, bottom/max	Depth bot	m	Ukpabi, Ndubuisi
4	Color description	Color descr		Ukpabi, Ndubuisi		Sediment colour
5	Sediment type	Sediment		Ukpabi, Ndubuisi		Description
6	Coccoliths, total	Cocco	#	Ukpabi, Ndubuisi	Counting, coccoliths
7	Fields	Fields	#	Ukpabi, Ndubuisi		Number of fields of view
8	Radius	Radius	cm	Ukpabi, Ndubuisi		Petri dish radius
9	Radius	Radius	cm	Ukpabi, Ndubuisi		Optical field radius
10	Subsample, dry mass	Subsamp dm	g	Ukpabi, Ndubuisi		Subsample weight
11	Sample, dry mass	Samp dm	g	Ukpabi, Ndubuisi		Initial sample weight
12	Coccoliths	Cocco	10⁶ #	Ukpabi, Ndubuisi	Counting, coccoliths	Absolute coccolith number
13	Coccoliths	Cocco	10⁶ #/g	Ukpabi, Ndubuisi	Counting, coccoliths	Absolute coccolith abundance
14	Calcidiscus leptoporus	C. leptoporus	#	Ukpabi, Ndubuisi	Counting, coccoliths
15	Calcidiscus leptoporus	C. leptoporus	%	Ukpabi, Ndubuisi	Counting, coccoliths
16	Coccolithus pelagicus	C. pelagicus	#	Ukpabi, Ndubuisi	Counting, coccoliths
17	Coccolithus pelagicus	C. pelagicus	%	Ukpabi, Ndubuisi	Counting, coccoliths
18	Helicosphaera carteri	H. carteri	#	Ukpabi, Ndubuisi	Counting, coccoliths
19	Helicosphaera carteri	H. carteri	%	Ukpabi, Ndubuisi	Counting, coccoliths
20	Gephyrocapsa spp.	Gephyrocapsa spp.	#	Ukpabi, Ndubuisi	Counting, coccoliths
21	Gephyrocapsa spp.	Gephyrocapsa spp.	%	Ukpabi, Ndubuisi	Counting, coccoliths
22	Emiliania huxleyi	E. huxleyi	#	Ukpabi, Ndubuisi	Counting, coccoliths
23	Emiliania huxleyi	E. huxleyi	%	Ukpabi, Ndubuisi	Counting, coccoliths
24	Syracosphaera pulchra	S. pulchra	#	Ukpabi, Ndubuisi	Counting, coccoliths
25	Syracosphaera pulchra	S. pulchra	%	Ukpabi, Ndubuisi	Counting, coccoliths
26	Umbilicosphaera spp.	Umbilicosphaera spp.	#	Ukpabi, Ndubuisi	Counting, coccoliths
27	Umbilicosphaera spp.	Umbilicosphaera spp.	%	Ukpabi, Ndubuisi	Counting, coccoliths
28	Pontosphaera discopora	P. discopora	#	Ukpabi, Ndubuisi	Counting, coccoliths
29	Pontosphaera discopora	P. discopora	%	Ukpabi, Ndubuisi	Counting, coccoliths
30	Pontosphaera japonica	P. japonica	#	Ukpabi, Ndubuisi	Counting, coccoliths
31	Pontosphaera japonica	P. japonica	%	Ukpabi, Ndubuisi	Counting, coccoliths
32	Braarudosphaera bigelowii	B. bigelowii	#	Ukpabi, Ndubuisi	Counting, coccoliths
33	Braarudosphaera bigelowii	B. bigelowii	%	Ukpabi, Ndubuisi	Counting, coccoliths

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

2238 data points

Data

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

1 Depth sed [m]	2 Depth top [m]	3 Depth bot [m]	4 Color descr (Sediment colour)	5 Sediment (Description)	6 Cocco [#]	7 Fields [#] (Number of fields of view)	8 Radius [cm] (Petri dish radius)	9 Radius [cm] (Optical field radius)	10 Subsamp dm [g] (Subsample weight)	11 Samp dm [g] (Initial sample weight)	12 Cocco [10⁶ #] (Absolute coccolith number)	13 Cocco [10⁶ #/g] (Absolute coccolith abundance)	14 C. leptoporus [#]	15 C. leptoporus [%]	16 C. pelagicus [#]	17 C. pelagicus [%]	18 H. carteri [#]	19 H. carteri [%]	20 Gephyrocapsa spp. [#]	21 Gephyrocapsa spp. [%]	22 E. huxleyi [#]	23 E. huxleyi [%]	24 S. pulchra [#]	25 S. pulchra [%]	26 Umbilicosphaera spp. [#]	27 Umbilicosphaera spp. [%]	28 P. discopora [#]	29 P. discopora [%]	30 P. japonica [#]	31 P. japonica [%]	32 B. bigelowii [#]	33 B. bigelowii [%]
0.005	0.00	0.01	10 YR; 5/1	Dark grey, fine grained, homogeneous calcarous ooze with a smooth, soft texture.	835	37	30	0.01	0.0220	1.14050	203.108	10529.309	22	2.63	699	83.71	83	9.94	14	1.68	17	2.04		0.00		0.00		0.00		0.00		0.00
0.055	0.05	0.06	10 YR; 5/1	Dark grey, fine grained, homogeneous calcarous ooze with a smooth, soft texture.	923	37	30	0.01	0.0214	0.79230	224.514	8312.246	43	4.66	526	56.99	109	11.81	15	1.63	27	2.93	192	20.80	11	1.19		0.00		0.00		0.00
0.105	0.10	0.11	10 YR; 5/1	Dark grey, fine grained, homogeneous calcarous ooze with a smooth, soft texture.	644	33	30	0.01	0.0224	0.65900	175.636	5167.159	33	5.12	402	62.42	74	11.49	38	5.90	83	12.89	10	1.55		0.00	4	0.62		0.00		0.00
0.165	0.16	0.17	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	576	48	30	0.01	0.0206	0.14540	108.000	762.291	40	6.94	403	69.97	63	10.94	27	4.69	36	6.25	5	0.87	1	0.17	1	0.17		0.00		0.00
0.215	0.21	0.22	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	598	25	30	0.01	0.0211	0.15270	215.280	1557.974	35	5.85	396	66.22	20	3.34	53	8.86	87	14.55	7	1.17		0.00		0.00		0.00		0.00
0.255	0.25	0.26	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	624	30	30	0.01	0.0229	0.21540	187.200	1760.824	35	5.61	379	60.74	28	4.49	68	10.90	102	16.35	11	1.76		0.00	1	0.16		0.00		0.00
0.310	0.31	0.31	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	557	40	30	0.01	0.0219	0.24900	123.975	1409.579	63	11.31	392	70.38	35	6.28	23	4.13	37	6.64	5	0.90	1	0.18	1	0.18		0.00		0.00
0.355	0.35	0.36	10 YR; 2/1	Dark grey, very fine grained calcareous ooze.	469	105	30	0.01	0.0220	0.14580	40.200	266.416	33	7.04	244	52.03	19	4.05	73	15.57	98	20.90	2	0.43		0.00		0.00		0.00		0.00
0.405	0.40	0.41	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	396	75	30	0.01	0.0223	0.35110	47.520	748.174	18	4.55	278	70.20	12	3.03	45	11.36	43	10.86		0.00		0.00		0.00		0.00		0.00
0.455	0.45	0.46	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	631	28	30	0.01	0.0208	0.25920	202.821	2527.467	19	3.01	387	61.33	12	1.90	79	12.52	132	20.92	2	0.32		0.00		0.00		0.00		0.00
0.505	0.50	0.51	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	444	18	30	0.01	0.0235	0.27500	222.000	2597.872	13	2.93	306	68.92	23	5.18	37	8.33	53	11.94	11	2.48		0.00		0.00	1	0.23		0.00
0.555	0.55	0.56	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	398	28	30	0.01	0.0245	0.73520	127.929	3838.901	6	1.51	313	78.64	12	3.02	29	7.29	37	9.30		0.00		0.00		0.00	1	0.25		0.00
0.605	0.60	0.61	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	320	24	30	0.01	0.0225	0.48990	120.000	2612.800	41	12.81	182	56.88	31	9.69	11	3.44	47	14.69	8	2.50		0.00		0.00		0.00		0.00
0.655	0.65	0.66	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	383	46	30	0.01	0.0205	0.93300	74.935	3410.446	20	5.22	220	57.44	23	6.01	49	12.79	71	18.54		0.00		0.00		0.00		0.00		0.00
0.705	0.70	0.71	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	363	30	30	0.01	0.0235	0.36030	108.900	1669.646	15	4.13	245	67.49	28	7.71	33	9.09	42	11.57		0.00		0.00		0.00		0.00		0.00
0.755	0.75	0.76	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	398	36	30	0.01	0.0220	0.43910	99.500	1985.930	26	6.53	242	60.80	30	7.54	43	10.80	57	14.32		0.00		0.00		0.00		0.00		0.00
0.805	0.80	0.81	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	376	27	30	0.01	0.0220	0.51480	125.333	2932.800	28	7.45	267	71.01	21	5.59	23	6.12	37	9.84		0.00		0.00		0.00		0.00		0.00
0.855	0.85	0.86	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	378	13	30	0.01	0.0236	0.32730	261.692	3629.317	70	18.52	210	55.56	18	4.76	16	4.23	53	14.02	11	2.91		0.00		0.00		0.00		0.00
0.905	0.90	0.91	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	467	29	30	0.01	0.0233	0.40400	144.931	2512.967	31	6.64	240	51.39	40	8.57	51	10.92	73	15.63	32	6.85		0.00		0.00		0.00		0.00
0.955	0.95	0.96	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	491	25	30	0.01	0.0227	0.43850	176.760	3414.505	12	2.44	230	46.84	52	10.59	69	14.05	105	21.38	23	4.68		0.00		0.00		0.00		0.00
1.005	1.00	1.01	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	553	33	30	0.01	0.0225	0.34500	150.818	2312.545	73	13.20	346	62.57	30	5.42	23	4.16	63	11.39	18	3.25		0.00		0.00		0.00		0.00
1.055	1.05	1.06	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	479	15	30	0.01	0.0245	0.45670	287.400	5357.371	35	7.31	235	49.06	39	8.14	53	11.06	89	18.58	28	5.85		0.00		0.00		0.00		0.00
1.105	1.10	1.11	5 Y; 3/1	Dark grey, fine to silty calcareous ooze.	537	41	30	0.01	0.0238	0.27680	117.878	1370.951	38	7.08	235	43.76	26	4.84	57	10.61	143	26.63	38	7.08		0.00		0.00		0.00		0.00
1.175	1.17	1.18	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	462	33	30	0.01	0.0203	0.40600	126.000	2520.000	15	3.25	267	57.79	25	5.41	45	9.74	93	20.13	17	3.68		0.00		0.00		0.00		0.00
1.205	1.20	1.21	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	368	30	30	0.01	0.0217	0.58710	110.400	2986.905	17	4.62	246	66.85	30	8.15	27	7.34	37	10.05	11	2.99		0.00		0.00		0.00		0.00
1.255	1.25	1.26	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	46	15	30	0.01	0.0240	0.20110	27.600	231.265	5	10.87	7	15.22	3	6.52	12	26.09	17	36.96	1	2.17		0.00	1	2.17		0.00		0.00
1.305	1.30	1.31	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	188	11	30	0.01	0.0240	0.21690	153.818	1390.132	32	17.02	50	26.60	7	3.72	27	14.36	67	35.64	5	2.66		0.00		0.00		0.00		0.00
1.355	1.35	1.36	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	469	13	30	0.01	0.0215	0.43090	324.692	6507.438	35	7.46	218	46.48	55	11.73	68	14.50	93	19.83		0.00		0.00		0.00		0.00		0.00
1.405	1.40	1.41	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	323	16	30	0.01	0.0211	0.16060	181.688	1382.892	98	30.34	15	4.64	20	6.19	79	24.46	104	32.20	7	2.17		0.00		0.00		0.00		0.00
1.455	1.45	1.46	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	747	25	30	0.01	0.0219	0.17450	268.920	2142.764	17	2.28	266	35.61	17	2.28	138	18.47	297	39.76	12	1.61		0.00		0.00		0.00		0.00
1.505	1.50	1.51	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	355	30	30	0.01	0.0219	0.24180	106.500	1175.877	17	4.79	270	76.06	5	1.41	25	7.04	37	10.42	1	0.28		0.00		0.00		0.00		0.00
1.555	1.55	1.56	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	661	37	30	0.01	0.0204	0.41300	160.784	3255.083	217	32.83	15	2.27	38	5.75	178	26.93	203	30.71	10	1.51		0.00		0.00		0.00		0.00
1.605	1.60	1.61	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	369	38	30	0.01	0.0232	0.80340	87.395	3026.419	19	5.15	275	74.53	16	4.34	18	4.88	34	9.21	7	1.90		0.00		0.00		0.00		0.00
1.655	1.65	1.66	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	427	47	30	0.01	0.0209	0.58090	81.766	2272.624	26	6.09	139	32.55	13	3.04	43	10.07	198	46.37	8	1.87		0.00		0.00		0.00		0.00
1.705	1.70	1.71	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	523	32	30	0.01	0.0213	0.45680	147.094	3154.574	39	7.46	343	65.58	9	1.72	27	5.16	88	16.83	17	3.25		0.00		0.00		0.00		0.00
1.755	1.75	1.76	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	359	37	30	0.01	0.0216	0.23810	87.324	962.589	15	4.18	280	77.99	10	2.79	21	5.85	33	9.19		0.00		0.00		0.00		0.00		0.00
1.805	1.80	1.81	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	520	78	30	0.01	0.0223	0.36810	60.000	990.404	34	6.54	255	49.04	15	2.88	97	18.65	108	20.77	11	2.12		0.00		0.00		0.00		0.00
1.855	1.85	1.86	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	651	40	30	0.01	0.0207	0.48800	146.475	3453.130	36	5.53	245	37.63	21	3.23	137	21.04	189	29.03	23	3.53		0.00		0.00		0.00		0.00
1.905	1.90	1.91	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	434	28	30	0.01	0.0222	0.64950	139.500	4081.318	33	7.60	267	61.52	16	3.69	32	7.37	68	15.67	18	4.15		0.00		0.00		0.00		0.00
1.955	1.95	1.96	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	313	72	30	0.01	0.0212	0.84510	39.125	1559.648	48	15.34	240	76.68	20	6.39	2	0.64	3	0.96		0.00		0.00		0.00		0.00		0.00
2.005	2.00	2.01	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	470	82	30	0.01	0.0205	0.38950	51.585	980.122	46	9.79	240	51.06	13	2.77	73	15.53	98	20.85		0.00		0.00		0.00		0.00		0.00
2.055	2.05	2.06	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	550	85	30	0.01	0.0231	0.21020	58.235	529.916	30	5.45	265	48.18	5	0.91	105	19.09	127	23.09	17	3.09		0.00		0.00	1	0.18		0.00
2.105	2.10	2.11	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	384	100	30	0.01	0.0213	0.45650	34.560	740.687	24	6.25	191	49.74	3	0.78	63	16.41	98	25.52	5	1.30		0.00		0.00		0.00		0.00
2.165	2.16	2.17	5Y; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	471	64	30	0.01	0.0223	0.40370	66.234	1199.050	28	5.94	240	50.96	30	6.37	63	13.38	103	21.87	7	1.49		0.00		0.00		0.00		0.00
2.205	2.20	2.21	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	630	112	30	0.01	0.0202	0.46840	50.625	1173.899	97	15.40	209	33.17	9	1.43	72	11.43	237	37.62	6	0.95		0.00		0.00		0.00		0.00
2.255	2.25	2.26	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	458	61	30	0.01	0.0227	0.50700	67.574	1509.247	39	8.52	249	54.37	18	3.93	63	13.76	89	19.43		0.00		0.00		0.00		0.00		0.00
2.305	2.30	2.31	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	497	100	30	0.01	0.0206	0.31550	44.730	685.064	71	14.29	132	26.56	17	3.42	64	12.88	213	42.86		0.00		0.00		0.00		0.00		0.00
2.355	2.35	2.36	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	731	97	30	0.01	0.0203	0.45220	67.825	1510.855	96	13.13	188	25.72	21	2.87	193	26.40	228	31.19	5	0.68		0.00		0.00		0.00		0.00
2.405	2.40	2.41	10 YR; 2/1	Dark grey ash	681	60	30	0.01	0.0212	0.40080	102.150	1931.213	87	12.78	120	17.62	2	0.29	195	28.63	270	39.65	7	1.03		0.00		0.00		0.00		0.00
2.505	2.50	2.51	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	793	55	30	0.01	0.0219	0.23120	129.764	1369.925	128	16.14	251	31.65	12	1.51	205	25.85	197	24.84		0.00		0.00		0.00		0.00		0.00
2.555	2.55	2.56	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	756	34	30	0.01	0.0216	0.32610	200.118	3021.221	39	5.16	264	34.92	15	1.98	138	18.25	285	37.70	15	1.98		0.00		0.00		0.00		0.00
2.605	2.60	2.61	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	613	93	30	0.01	0.0216	0.36920	59.323	1013.977	112	18.27	66	10.77	7	1.14	143	23.33	273	44.54	12	1.96		0.00		0.00		0.00		0.00
2.655	2.65	2.66	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	739	81	30	0.01	0.0232	0.19610	82.111	694.051	170	23.00	123	16.64	14	1.89	246	33.29	184	24.90	2	0.27		0.00		0.00		0.00		0.00
2.705	2.70	2.71	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	604	109	30	0.01	0.0210	0.37750	49.872	896.501	152	25.17	130	21.52	16	2.65	187	30.96	118	19.54		0.00		0.00		0.00		0.00	1	0.17
2.755	2.75	2.76	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	615	99	30	0.01	0.0202	0.83110	55.909	2300.299	126	20.49	143	23.25	11	1.79	253	41.14	73	11.87	8	1.30	1	0.16		0.00		0.00		0.00
2.805	2.80	2.81	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	706	34	30	0.01	0.0200	0.03138	186.882	293.218	117	16.57	72	10.20	7	0.99	132	18.70	375	53.12	3	0.42		0.00		0.00		0.00		0.00
2.855	2.85	2.86	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	459	41	30	0.01	0.0208	0.32140	100.756	1556.875	160	34.86	23	5.01	3	0.65	147	32.03	126	27.45		0.00		0.00		0.00		0.00		0.00
2.905	2.90	2.91	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	513	35	30	0.01	0.0205	0.24750	131.914	1592.624	178	34.70	29	5.65	0	0.00	152	29.63	154	30.02		0.00		0.00		0.00		0.00		0.00
2.955	2.95	2.96	10 YR; 2/1	Dark grey, very fine grained calcareous ooze.	558	109	30	0.01	0.0214	0.41470	46.073	892.833	114	20.43	98	17.56	14	2.51	193	34.59	132	23.66	7	1.25		0.00		0.00		0.00		0.00
3.005	3.00	3.01	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	392	137	30	0.01	0.0213	0.60420	25.752	730.481	151	38.52	92	23.47	12	3.06	39	9.95	98	25.00		0.00		0.00		0.00		0.00		0.00
3.055	3.05	3.06	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	531	55	30	0.01	0.0230	0.37170	86.891	1404.233	160	30.13	64	12.05	18	3.39	83	15.63	204	38.42		0.00		0.00		0.00	2	0.38		0.00
3.105	3.10	3.11	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	881	115	30	0.01	0.0208	0.37980	68.948	1258.961	164	18.62	113	12.83	17	1.93	328	37.23	247	28.04	12	1.36		0.00		0.00		0.00		0.00
3.155	3.15	3.16	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	579	95	30	0.01	0.0219	0.40060	54.853	1003.377	111	19.17	172	29.71	21	3.63	217	37.48	58	10.02		0.00		0.00		0.00		0.00		0.00
3.205	3.20	3.21	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	519	53	30	0.01	0.0225	0.57260	88.132	2242.863	74	14.26	69	13.29	22	4.24	224	43.16	105	20.23	23	4.43	1	0.19		0.00	1	0.19		0.00
3.255	3.25	3.26	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	284	70	30	0.01	0.0213	0.71580	36.514	1227.086	104	36.62	25	8.80	8	2.82	29	10.21	117	41.20		0.00	1	0.35		0.00		0.00		0.00
3.305	3.30	3.31	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	228	80	30	0.01	0.0225	0.47190	25.650	537.966	105	46.05	20	8.77	8	3.51	7	3.07	88	38.60		0.00		0.00		0.00		0.00		0.00
3.355	3.35	3.36	10 YR; 2/1	Dark grey, very fine grained calcareous ooze.	405	97	30	0.01	0.0221	1.15910	37.577	1970.854	237	58.52	16	3.95	14	3.46	28	6.91	107	26.42	2	0.49		0.00		0.00		0.00	1	0.25
3.505	3.50	3.51	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	564	90	30	0.01	0.0205	0.38850	56.400	1068.849	260	46.10	29	5.14	36	6.38	135	23.94	87	15.43	17	3.01		0.00		0.00		0.00		0.00
3.605	3.60	3.61	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	607	56	30	0.01	0.0219	0.37260	97.554	1659.747	168	27.68	30	4.94	42	6.92	174	28.67	183	30.15	9	1.48		0.00		0.00	1	0.16		0.00
3.655	3.65	3.66	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	990	42	30	0.01	0.0226	0.35940	212.143	3373.635	296	29.90	34	3.43	23	2.32	302	30.51	317	32.02	17	1.72		0.00		0.00	1	0.10		0.00
3.705	3.70	3.71	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	662	68	30	0.01	0.0225	0.45600	87.618	1775.718	205	30.97	13	1.96	18	2.72	234	35.35	187	28.25	5	0.76		0.00		0.00		0.00		0.00
3.755	3.75	3.76	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	759	64	30	0.01	0.0225	0.90340	106.734	4285.504	284	37.42	11	1.45	18	2.37	234	30.83	207	27.27	5	0.66		0.00		0.00		0.00		0.00
3.805	3.80	3.81	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	510	39	30	0.01	0.0235	0.45440	117.692	2275.718	297	58.24	22	4.31	13	2.55	98	19.22	72	14.12	8	1.57		0.00		0.00		0.00		0.00
3.855	3.85	3.86	10 YR; 2/1	Dark grey ash	207	83	30	0.01	0.0219	0.22800	22.446	233.682	111	53.62	7	3.38	5	2.42	18	8.70	63	30.43	3	1.45		0.00		0.00		0.00		0.00
3.895	3.89	3.90	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	466	65	30	0.01	0.0206	0.51010	64.523	1597.729	47	10.09	270	57.94	16	3.43	34	7.30	78	16.74	21	4.51		0.00		0.00		0.00		0.00
4.005	4.00	4.01	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	617	92	30	0.01	0.0206	0.43060	60.359	1261.673	26	4.21	302	48.95	17	2.76	22	3.57	237	38.41	13	2.11		0.00		0.00		0.00		0.00
4.055	4.05	4.06	7.5 YR; 4/1	Dark grey, very fine grained, homogeneous calcarous ooze with a smooth, soft texture.	557	130	30	0.01	0.0232	0.38800	20.146	336.927	42	7.54	196	35.19	44	7.90	59	10.59	199	35.73	17	3.05		0.00		0.00		0.00		0.00
4.105	4.10	4.11	10 YR; 2/1	Dark grey ash	149	79	30	0.01	0.0214	0.30520	16.975	242.088	16	10.74	95	63.76	8	5.37	6	4.03	20	13.42	2	1.34		0.00		0.00	2	1.34		0.00
4.160	4.15	4.17	10 YR; 2/1	Dark grey ash	7	31	30	0.01	0.0203	0.77350	2.032	77.436	2	28.57	2	28.57	0	0.00	0	0.00	3	42.86	0	0.00		0.00		0.00		0.00		0.00
4.180	4.17	4.19	10 YR; 2/1	Dark grey ash	224	87	30	0.01	0.0208	0.75290	23.172	838.775	64	28.57	17	7.59	25	11.16	25	11.16	93	41.52		0.00		0.00		0.00		0.00		0.00