Citation:

PANGAEA.993681 (dataset in review)

Name: Silicon isotope records from radiolarians and sponge spicules across Middle Eocene Climatic Optimum (MECO) from IODP Site 371-U1511, ODP Site 207-1260, and ODP Site 171-1051
License: https://creativecommons.org/licenses/by/4.0/
Keywords: MECO; Radiolarians; Silicon isotopes; sponge spicules

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Abstract:

This dataset contains stable silicon isotope measurements of radiolarian tests and sponge spicules analyzed by MC-ICP-MS (mass spectrometer, Thermo scientific, Neptune) . The data contribute to a broader study aimed at reconstructing the marine silicon cycle during the Middle Eocene Climatic Optimum (MECO) in order to investigate changes in silicate weathering feedbacks and ocean circulation, using siliceous microfossils from IODP Site 371-U1511, ODP Site 207-1260, and ODP Site 171-1051.

Keyword(s):

MECO; Radiolarians; Silicon isotopes; sponge spicules

Supplement to:

Ruchi; Henehan, Michael J; Frings, Patrick J; Laub, Ollie; Penman, Donald E; Frick, Daniel A; Blanckenburg, Friedhelm von (in prep.): Constraints on silicate weathering and ocean circulation during the MECO from silicon isotopes.

Funding:

German Research Foundation (DFG), grant/award no. HE 8660/3

Coverage:

Median Latitude: 8.215235 * Median Longitude: -92.297578 * South-bound Latitude: -37.561093 * West-bound Longitude: 160.315632 * North-bound Latitude: 30.053080 * East-bound Longitude: -54.543880

Date/Time Start: 1997-01-21T19:15:00 * Date/Time End: 2003-02-12T23:45:00

Minimum DEPTH, sediment/rock: 41.800 m * Maximum DEPTH, sediment/rock: 269.880 m

Event(s):

171-1051A * Latitude: 30.052880 * Longitude: -76.357610 * Date/Time: 1997-01-21T19:15:00 * Elevation: -1982.7 m * Penetration: 644.6 m * Recovery: 599.89 m * Location: Blake Nose, North Atlantic Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 73 cores; 636.3 m cored; 8.3 m drilled; 94.3 % recovery

171-1051B * Latitude: 30.053080 * Longitude: -76.357830 * Date/Time: 1997-01-27T02:00:00 * Elevation: -1980.6 m * Penetration: 526.6 m * Recovery: 508.18 m * Location: Blake Nose, North Atlantic Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 61 core; 524.6 m cored; 2 m drilled; 96.9 % recovery

207-1260A * Latitude: 9.265800 * Longitude: -54.543880 * Date/Time Start: 2003-02-07T04:30:00 * Date/Time End: 2003-02-09T07:35:00 * Elevation: -2548.8 m * Penetration: 491.9 m * Recovery: 391.6 m * Location: North Atlantic Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 54 cores; 491.9 m cored; 0 m drilled; 79.6 % recovery

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Ruchi
2	Latitude of event	Latitude		Ruchi
3	Longitude of event	Longitude		Ruchi
4	Sample code/label	Sample label		Ruchi
5	DEPTH, sediment/rock	Depth sed	m	Ruchi		Geocode
6	Age	Age	Ma	Ruchi
7	Proxy	Proxy		Ruchi
8	Order, unique identification	Order UID		Ruchi	Reference in WoRMS (WoRMS)
9	Order, unique identification (Semantic URI)	Order UID (Semantic URI)		Ruchi	Reference in WoRMS (WoRMS)
10	Order, unique identification (URI)	Order UID (URI)		Ruchi	Reference in WoRMS (WoRMS)
11	δ30Si	δ30Si	‰ NBS	Ruchi	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS), ThermoFisher Scientific, Neptune Plus
12	δ30Si, standard deviation	δ30Si std dev	±	Ruchi	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS), ThermoFisher Scientific, Neptune Plus
13	δ29Si	δ29Si	‰	Ruchi	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS), ThermoFisher Scientific, Neptune Plus
14	δ29Si, standard deviation	δ29Si std dev	±	Ruchi	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS), ThermoFisher Scientific, Neptune Plus

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

1123 data points

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