Isotope ratios of smectites, calcites and whole rocks from DSDP Legs 51 and 52, Atlantic Ocean
Delta180 and 87Sr/86Sr isotopic data from smectites, calcites, and whole rocks, together with published isotopic age determinations, alkali element concentration data and petrographic observations suggest a sequential model of ocean floor alteration. The early stage lasts about 3 m.y. and is charact...
Main Authors: | , , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
1981
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.667373 https://doi.org/10.1594/PANGAEA.667373 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.667373 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.667373 2023-05-15T17:33:22+02:00 Isotope ratios of smectites, calcites and whole rocks from DSDP Legs 51 and 52, Atlantic Ocean Staudigel, Hubert Muehlenbachs, Karlis Richardson, Stephen H Hart, Stanley R MEDIAN LATITUDE: 25.065350 * MEDIAN LONGITUDE: -68.051730 * SOUTH-BOUND LATITUDE: 25.035000 * WEST-BOUND LONGITUDE: -68.057300 * NORTH-BOUND LATITUDE: 25.111500 * EAST-BOUND LONGITUDE: -68.041300 * DATE/TIME START: 1976-12-02T00:00:00 * DATE/TIME END: 1977-03-15T00:00:00 1981-11-02 application/zip, 10 datasets https://doi.pangaea.de/10.1594/PANGAEA.667373 https://doi.org/10.1594/PANGAEA.667373 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.667373 https://doi.org/10.1594/PANGAEA.667373 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Staudigel, Hubert; Muehlenbachs, Karlis; Richardson, Stephen H; Hart, Stanley R (1981): Agents of low temperature ocean crust alteration. Contributions to Mineralogy and Petrology, 77(2), 150-157, https://doi.org/10.1007/BF00636518 51-417_Site 51-417A 52-417D 52-418A 53-418A COMPCORE Composite Core Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg51 Leg52 Leg53 North Atlantic/CONT RISE Dataset 1981 ftpangaea https://doi.org/10.1594/PANGAEA.667373 https://doi.org/10.1007/BF00636518 2023-01-20T07:31:05Z Delta180 and 87Sr/86Sr isotopic data from smectites, calcites, and whole rocks, together with published isotopic age determinations, alkali element concentration data and petrographic observations suggest a sequential model of ocean floor alteration. The early stage lasts about 3 m.y. and is characterized by palagonite and smectite formation, and solutions with a large basaltic component, increasing with temperature which varies from 15° to 80° C at DSDP site 418A. Most carbonates are deposited after this stage from solutions with a negligible basaltic Sr component and temperatures of 15° to 40° C. Water of seawater Sr and O isotopic composition is shown to percolate to at least 500 m into the basaltic basement. No evidence was found for continuing exchange of strontium or oxygen after 3 m.y. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-68.057300,-68.041300,25.111500,25.035000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
51-417_Site 51-417A 52-417D 52-418A 53-418A COMPCORE Composite Core Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg51 Leg52 Leg53 North Atlantic/CONT RISE |
spellingShingle |
51-417_Site 51-417A 52-417D 52-418A 53-418A COMPCORE Composite Core Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg51 Leg52 Leg53 North Atlantic/CONT RISE Staudigel, Hubert Muehlenbachs, Karlis Richardson, Stephen H Hart, Stanley R Isotope ratios of smectites, calcites and whole rocks from DSDP Legs 51 and 52, Atlantic Ocean |
topic_facet |
51-417_Site 51-417A 52-417D 52-418A 53-418A COMPCORE Composite Core Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg51 Leg52 Leg53 North Atlantic/CONT RISE |
description |
Delta180 and 87Sr/86Sr isotopic data from smectites, calcites, and whole rocks, together with published isotopic age determinations, alkali element concentration data and petrographic observations suggest a sequential model of ocean floor alteration. The early stage lasts about 3 m.y. and is characterized by palagonite and smectite formation, and solutions with a large basaltic component, increasing with temperature which varies from 15° to 80° C at DSDP site 418A. Most carbonates are deposited after this stage from solutions with a negligible basaltic Sr component and temperatures of 15° to 40° C. Water of seawater Sr and O isotopic composition is shown to percolate to at least 500 m into the basaltic basement. No evidence was found for continuing exchange of strontium or oxygen after 3 m.y. |
format |
Dataset |
author |
Staudigel, Hubert Muehlenbachs, Karlis Richardson, Stephen H Hart, Stanley R |
author_facet |
Staudigel, Hubert Muehlenbachs, Karlis Richardson, Stephen H Hart, Stanley R |
author_sort |
Staudigel, Hubert |
title |
Isotope ratios of smectites, calcites and whole rocks from DSDP Legs 51 and 52, Atlantic Ocean |
title_short |
Isotope ratios of smectites, calcites and whole rocks from DSDP Legs 51 and 52, Atlantic Ocean |
title_full |
Isotope ratios of smectites, calcites and whole rocks from DSDP Legs 51 and 52, Atlantic Ocean |
title_fullStr |
Isotope ratios of smectites, calcites and whole rocks from DSDP Legs 51 and 52, Atlantic Ocean |
title_full_unstemmed |
Isotope ratios of smectites, calcites and whole rocks from DSDP Legs 51 and 52, Atlantic Ocean |
title_sort |
isotope ratios of smectites, calcites and whole rocks from dsdp legs 51 and 52, atlantic ocean |
publisher |
PANGAEA |
publishDate |
1981 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.667373 https://doi.org/10.1594/PANGAEA.667373 |
op_coverage |
MEDIAN LATITUDE: 25.065350 * MEDIAN LONGITUDE: -68.051730 * SOUTH-BOUND LATITUDE: 25.035000 * WEST-BOUND LONGITUDE: -68.057300 * NORTH-BOUND LATITUDE: 25.111500 * EAST-BOUND LONGITUDE: -68.041300 * DATE/TIME START: 1976-12-02T00:00:00 * DATE/TIME END: 1977-03-15T00:00:00 |
long_lat |
ENVELOPE(-68.057300,-68.041300,25.111500,25.035000) |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Staudigel, Hubert; Muehlenbachs, Karlis; Richardson, Stephen H; Hart, Stanley R (1981): Agents of low temperature ocean crust alteration. Contributions to Mineralogy and Petrology, 77(2), 150-157, https://doi.org/10.1007/BF00636518 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.667373 https://doi.org/10.1594/PANGAEA.667373 |
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.667373 https://doi.org/10.1007/BF00636518 |
_version_ |
1766131862112043008 |