(Table 2) Silicon isotope data for sponge spicules from ODP Hole 113-689B
The silicon isotope composition (d30Si) of biogenic opal provides a view of the silica cycle at times in the past. Reconstructions require the knowledge of silicon isotope fractionation during opal biomineralization. The d30Si of specimens of hexactinellid sponges and demosponges growing in the mode...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.712437 2023-05-15T18:21:09+02:00 (Table 2) Silicon isotope data for sponge spicules from ODP Hole 113-689B De La Rocha, Christina L LATITUDE: -64.517000 * LONGITUDE: 3.099900 * DATE/TIME START: 1987-01-16T08:00:00 * DATE/TIME END: 1987-01-18T06:45:00 * MINIMUM DEPTH, sediment/rock: 111.4 m * MAXIMUM DEPTH, sediment/rock: 141.7 m 2003-02-10 text/tab-separated-values, 39 data points https://doi.pangaea.de/10.1594/PANGAEA.712437 https://doi.org/10.1594/PANGAEA.712437 en eng PANGAEA De La Rocha, Christina L (2003): Silicon isotope fractionation by marine sponges and the reconstruction of the silicon isotope composition of ancient deep water. Geology, 31(5), 423-426, https://doi.org/10.1130/0091-7613(2003)031%3C0423:SIFBMS%3E2.0.CO;2 https://doi.pangaea.de/10.1594/PANGAEA.712437 https://doi.org/10.1594/PANGAEA.712437 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY 113-689B AGE Calculated DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Joides Resolution Leg113 Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS) Ocean Drilling Program ODP Sample code/label South Atlantic Ocean δ30Si biogenic silica error Dataset 2003 ftpangaea https://doi.org/10.1594/PANGAEA.712437 https://doi.org/10.1130/0091-7613(2003)031%3C0423:SIFBMS%3E2.0.CO;2 2023-01-20T08:47:12Z The silicon isotope composition (d30Si) of biogenic opal provides a view of the silica cycle at times in the past. Reconstructions require the knowledge of silicon isotope fractionation during opal biomineralization. The d30Si of specimens of hexactinellid sponges and demosponges growing in the modern ocean ranged from -1.2 per mil to -3.7 per mil (n = 6), corresponding to the production of opal that has a d30Si value 3.8 per mil +/- 0.8 per mil more negative than seawater silicic acid and a fractionation factor (a) of 0.9964. This is three times the fractionation observed during opal formation by marine diatoms and terrestrial plants and is the largest fractionation of silicon isotopes observed for any natural process on Earth. The d30Si values of sponge spicules across the Eocene-Oligocene boundary at Ocean Drilling Program Site 689 on Maud Rise range from -1.1 per mil to -3.0 per mil, overlapping the range observed for sponges growing in modern seawater. Dataset South Atlantic Ocean PANGAEA - Data Publisher for Earth & Environmental Science Maud Rise ENVELOPE(3.000,3.000,-66.000,-66.000) ENVELOPE(3.099900,3.099900,-64.517000,-64.517000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
113-689B AGE Calculated DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Joides Resolution Leg113 Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS) Ocean Drilling Program ODP Sample code/label South Atlantic Ocean δ30Si biogenic silica error |
spellingShingle |
113-689B AGE Calculated DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Joides Resolution Leg113 Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS) Ocean Drilling Program ODP Sample code/label South Atlantic Ocean δ30Si biogenic silica error De La Rocha, Christina L (Table 2) Silicon isotope data for sponge spicules from ODP Hole 113-689B |
topic_facet |
113-689B AGE Calculated DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Joides Resolution Leg113 Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS) Ocean Drilling Program ODP Sample code/label South Atlantic Ocean δ30Si biogenic silica error |
description |
The silicon isotope composition (d30Si) of biogenic opal provides a view of the silica cycle at times in the past. Reconstructions require the knowledge of silicon isotope fractionation during opal biomineralization. The d30Si of specimens of hexactinellid sponges and demosponges growing in the modern ocean ranged from -1.2 per mil to -3.7 per mil (n = 6), corresponding to the production of opal that has a d30Si value 3.8 per mil +/- 0.8 per mil more negative than seawater silicic acid and a fractionation factor (a) of 0.9964. This is three times the fractionation observed during opal formation by marine diatoms and terrestrial plants and is the largest fractionation of silicon isotopes observed for any natural process on Earth. The d30Si values of sponge spicules across the Eocene-Oligocene boundary at Ocean Drilling Program Site 689 on Maud Rise range from -1.1 per mil to -3.0 per mil, overlapping the range observed for sponges growing in modern seawater. |
format |
Dataset |
author |
De La Rocha, Christina L |
author_facet |
De La Rocha, Christina L |
author_sort |
De La Rocha, Christina L |
title |
(Table 2) Silicon isotope data for sponge spicules from ODP Hole 113-689B |
title_short |
(Table 2) Silicon isotope data for sponge spicules from ODP Hole 113-689B |
title_full |
(Table 2) Silicon isotope data for sponge spicules from ODP Hole 113-689B |
title_fullStr |
(Table 2) Silicon isotope data for sponge spicules from ODP Hole 113-689B |
title_full_unstemmed |
(Table 2) Silicon isotope data for sponge spicules from ODP Hole 113-689B |
title_sort |
(table 2) silicon isotope data for sponge spicules from odp hole 113-689b |
publisher |
PANGAEA |
publishDate |
2003 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.712437 https://doi.org/10.1594/PANGAEA.712437 |
op_coverage |
LATITUDE: -64.517000 * LONGITUDE: 3.099900 * DATE/TIME START: 1987-01-16T08:00:00 * DATE/TIME END: 1987-01-18T06:45:00 * MINIMUM DEPTH, sediment/rock: 111.4 m * MAXIMUM DEPTH, sediment/rock: 141.7 m |
long_lat |
ENVELOPE(3.000,3.000,-66.000,-66.000) ENVELOPE(3.099900,3.099900,-64.517000,-64.517000) |
geographic |
Maud Rise |
geographic_facet |
Maud Rise |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
De La Rocha, Christina L (2003): Silicon isotope fractionation by marine sponges and the reconstruction of the silicon isotope composition of ancient deep water. Geology, 31(5), 423-426, https://doi.org/10.1130/0091-7613(2003)031%3C0423:SIFBMS%3E2.0.CO;2 https://doi.pangaea.de/10.1594/PANGAEA.712437 https://doi.org/10.1594/PANGAEA.712437 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.712437 https://doi.org/10.1130/0091-7613(2003)031%3C0423:SIFBMS%3E2.0.CO;2 |
_version_ |
1766200273386078208 |