Geochemistry of basalts of ODP Hole 106-648B
Basalts from ODP Site 648, recovered from Serocki Volcano, a near-axis volcano on the Mid-Atlantic Ridge, are normal mid-ocean ridge basalts, depleted in K, Rb, and LREE. They have homogeneous source regions with 87Sr/88Sr = 0.70234 - 0.70245 (N = 6); 143Nd/,44Nd = 0.51318 - 0.51322 (N = 8); 208Pb/2...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.745334 2024-09-15T18:23:38+00:00 Geochemistry of basalts of ODP Hole 106-648B Park, Kye-Hun Staudigel, Hubert LATITUDE: 22.922000 * LONGITUDE: -44.947100 * DATE/TIME START: 1985-11-11T12:00:00 * DATE/TIME END: 1985-12-12T02:00:00 1990 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.745334 https://doi.org/10.1594/PANGAEA.745334 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.745334 https://doi.org/10.1594/PANGAEA.745334 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Park, Kye-Hun; Staudigel, Hubert (1990): Radiogenic isotope ratios and initial seafloor alteration in submarine Serocki Volcano basalts. In: Detrick, R; Honnorez, J; Bryan, WB; Juteau, T; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 106/109, 117-121, https://doi.org/10.2973/odp.proc.sr.106109.134.1990 106-648B DRILL Drilling/drill rig Joides Resolution Leg106 North Atlantic Ocean Ocean Drilling Program ODP dataset publication series 1990 ftpangaea https://doi.org/10.1594/PANGAEA.74533410.2973/odp.proc.sr.106109.134.1990 2024-08-21T00:02:25Z Basalts from ODP Site 648, recovered from Serocki Volcano, a near-axis volcano on the Mid-Atlantic Ridge, are normal mid-ocean ridge basalts, depleted in K, Rb, and LREE. They have homogeneous source regions with 87Sr/88Sr = 0.70234 - 0.70245 (N = 6); 143Nd/,44Nd = 0.51318 - 0.51322 (N = 8); 208Pb/204Pb = 18.53 - 18.74; 207Pb/205Pb = 15.40 – 15.45; 208Pb/204Pb = 37.83 – 36.14 (n= 3). The recovered materials are generally fresh with minor initial alteration that can be identified petrographically as the minor occurrence of groundmass clays and/or black halos. We have analyzed four separates of black halos, two of them with adjoining fresh bulk rock samples for a comparison of their chemical and isotopic composition. All black halos analyzed occur on or very close to the surfaces of rock fragments, and appear to be of finer groundmass grain size and/or contain less groundmass plagioclase, suggesting a different early cooling history. Two of the black halo samples analyzed were indistinguishable from fresh rock, and two displayed higher K, Rb, loss-on-ignition, and 87Sr/86Sr ratios, and lower K/Rb, chemical variations that suggest higher degree of ocean floor alteration. Other/Unknown Material North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-44.947100,-44.947100,22.922000,22.922000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
106-648B DRILL Drilling/drill rig Joides Resolution Leg106 North Atlantic Ocean Ocean Drilling Program ODP |
spellingShingle |
106-648B DRILL Drilling/drill rig Joides Resolution Leg106 North Atlantic Ocean Ocean Drilling Program ODP Park, Kye-Hun Staudigel, Hubert Geochemistry of basalts of ODP Hole 106-648B |
topic_facet |
106-648B DRILL Drilling/drill rig Joides Resolution Leg106 North Atlantic Ocean Ocean Drilling Program ODP |
description |
Basalts from ODP Site 648, recovered from Serocki Volcano, a near-axis volcano on the Mid-Atlantic Ridge, are normal mid-ocean ridge basalts, depleted in K, Rb, and LREE. They have homogeneous source regions with 87Sr/88Sr = 0.70234 - 0.70245 (N = 6); 143Nd/,44Nd = 0.51318 - 0.51322 (N = 8); 208Pb/204Pb = 18.53 - 18.74; 207Pb/205Pb = 15.40 – 15.45; 208Pb/204Pb = 37.83 – 36.14 (n= 3). The recovered materials are generally fresh with minor initial alteration that can be identified petrographically as the minor occurrence of groundmass clays and/or black halos. We have analyzed four separates of black halos, two of them with adjoining fresh bulk rock samples for a comparison of their chemical and isotopic composition. All black halos analyzed occur on or very close to the surfaces of rock fragments, and appear to be of finer groundmass grain size and/or contain less groundmass plagioclase, suggesting a different early cooling history. Two of the black halo samples analyzed were indistinguishable from fresh rock, and two displayed higher K, Rb, loss-on-ignition, and 87Sr/86Sr ratios, and lower K/Rb, chemical variations that suggest higher degree of ocean floor alteration. |
format |
Other/Unknown Material |
author |
Park, Kye-Hun Staudigel, Hubert |
author_facet |
Park, Kye-Hun Staudigel, Hubert |
author_sort |
Park, Kye-Hun |
title |
Geochemistry of basalts of ODP Hole 106-648B |
title_short |
Geochemistry of basalts of ODP Hole 106-648B |
title_full |
Geochemistry of basalts of ODP Hole 106-648B |
title_fullStr |
Geochemistry of basalts of ODP Hole 106-648B |
title_full_unstemmed |
Geochemistry of basalts of ODP Hole 106-648B |
title_sort |
geochemistry of basalts of odp hole 106-648b |
publisher |
PANGAEA |
publishDate |
1990 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.745334 https://doi.org/10.1594/PANGAEA.745334 |
op_coverage |
LATITUDE: 22.922000 * LONGITUDE: -44.947100 * DATE/TIME START: 1985-11-11T12:00:00 * DATE/TIME END: 1985-12-12T02:00:00 |
long_lat |
ENVELOPE(-44.947100,-44.947100,22.922000,22.922000) |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Park, Kye-Hun; Staudigel, Hubert (1990): Radiogenic isotope ratios and initial seafloor alteration in submarine Serocki Volcano basalts. In: Detrick, R; Honnorez, J; Bryan, WB; Juteau, T; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 106/109, 117-121, https://doi.org/10.2973/odp.proc.sr.106109.134.1990 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.745334 https://doi.org/10.1594/PANGAEA.745334 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.74533410.2973/odp.proc.sr.106109.134.1990 |
_version_ |
1810463888661020672 |