Characterization of diagenetic fluids at ODP Site 103-639
Site 639, drilled during Leg 103 of the Ocean Drilling Program, penetrated an Upper Jurassic to Lower Cretaceous carbonate platform on a tilted fault block along the Galicia margin off the northwest Iberian Peninsula. The carbonate platform is composed primarily of a sequence of dolomite overlying l...
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1988
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.743488 2024-09-15T18:20:12+00:00 Characterization of diagenetic fluids at ODP Site 103-639 Haggerty, Janet A Smith, Michael P MEDIAN LATITUDE: 42.143300 * MEDIAN LONGITUDE: -12.252900 * SOUTH-BOUND LATITUDE: 42.143300 * WEST-BOUND LONGITUDE: -12.255000 * NORTH-BOUND LATITUDE: 42.143300 * EAST-BOUND LONGITUDE: -12.248300 * DATE/TIME START: 1985-05-23T09:45:00 * DATE/TIME END: 1985-06-01T07:00:00 1988 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.743488 https://doi.org/10.1594/PANGAEA.743488 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.743488 https://doi.org/10.1594/PANGAEA.743488 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Haggerty, Janet A; Smith, Michael P (1988): Characterization of diagenetic fluids of the Upper Jurassic-Lower Cretaceous carbonate platform of the Galicia Margin at Ocean Drilling Program Site 639: evidence for dolomitization by hypersaline brines. In: Boillot, G; Winterer, EL; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 103, 145-153, https://doi.org/10.2973/odp.proc.sr.103.155.1988 103-639A 103-639B 103-639C 103-639D DRILL Drilling/drill rig Joides Resolution Leg103 North Atlantic Ocean Ocean Drilling Program ODP dataset publication series 1988 ftpangaea https://doi.org/10.1594/PANGAEA.74348810.2973/odp.proc.sr.103.155.1988 2024-08-21T00:02:25Z Site 639, drilled during Leg 103 of the Ocean Drilling Program, penetrated an Upper Jurassic to Lower Cretaceous carbonate platform on a tilted fault block along the Galicia margin off the northwest Iberian Peninsula. The carbonate platform is composed primarily of a sequence of dolomite overlying limestone. Samples were analyzed for mineral chemistry, stable isotope geochemistry, fluid inclusion microthermometry, and volatile contents and by dolomite pyrolysis mass spectrometry for trace sulfate minerals. The dolomite recovered from the Galicia margin at Site 639 formed during shallow burial from sulfate-bearing, hypersaline brines at slightly elevated temperatures. The light oxygen isotopic signatures of the dolomite are interpreted as the result of the evaporative loop and slightly elevated temperatures during dolomite formation or from reequilibration at higher temperatures during deeper burial. The hypersalinity is interpreted to be associated with a nearby, shallow restricted basin that formed during rifting of the Iberian margin from Newfoundland. The dolomitization of the platform is therefore a by-product of the rifting. Other/Unknown Material Newfoundland North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-12.255000,-12.248300,42.143300,42.143300) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
103-639A 103-639B 103-639C 103-639D DRILL Drilling/drill rig Joides Resolution Leg103 North Atlantic Ocean Ocean Drilling Program ODP |
spellingShingle |
103-639A 103-639B 103-639C 103-639D DRILL Drilling/drill rig Joides Resolution Leg103 North Atlantic Ocean Ocean Drilling Program ODP Haggerty, Janet A Smith, Michael P Characterization of diagenetic fluids at ODP Site 103-639 |
topic_facet |
103-639A 103-639B 103-639C 103-639D DRILL Drilling/drill rig Joides Resolution Leg103 North Atlantic Ocean Ocean Drilling Program ODP |
description |
Site 639, drilled during Leg 103 of the Ocean Drilling Program, penetrated an Upper Jurassic to Lower Cretaceous carbonate platform on a tilted fault block along the Galicia margin off the northwest Iberian Peninsula. The carbonate platform is composed primarily of a sequence of dolomite overlying limestone. Samples were analyzed for mineral chemistry, stable isotope geochemistry, fluid inclusion microthermometry, and volatile contents and by dolomite pyrolysis mass spectrometry for trace sulfate minerals. The dolomite recovered from the Galicia margin at Site 639 formed during shallow burial from sulfate-bearing, hypersaline brines at slightly elevated temperatures. The light oxygen isotopic signatures of the dolomite are interpreted as the result of the evaporative loop and slightly elevated temperatures during dolomite formation or from reequilibration at higher temperatures during deeper burial. The hypersalinity is interpreted to be associated with a nearby, shallow restricted basin that formed during rifting of the Iberian margin from Newfoundland. The dolomitization of the platform is therefore a by-product of the rifting. |
format |
Other/Unknown Material |
author |
Haggerty, Janet A Smith, Michael P |
author_facet |
Haggerty, Janet A Smith, Michael P |
author_sort |
Haggerty, Janet A |
title |
Characterization of diagenetic fluids at ODP Site 103-639 |
title_short |
Characterization of diagenetic fluids at ODP Site 103-639 |
title_full |
Characterization of diagenetic fluids at ODP Site 103-639 |
title_fullStr |
Characterization of diagenetic fluids at ODP Site 103-639 |
title_full_unstemmed |
Characterization of diagenetic fluids at ODP Site 103-639 |
title_sort |
characterization of diagenetic fluids at odp site 103-639 |
publisher |
PANGAEA |
publishDate |
1988 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.743488 https://doi.org/10.1594/PANGAEA.743488 |
op_coverage |
MEDIAN LATITUDE: 42.143300 * MEDIAN LONGITUDE: -12.252900 * SOUTH-BOUND LATITUDE: 42.143300 * WEST-BOUND LONGITUDE: -12.255000 * NORTH-BOUND LATITUDE: 42.143300 * EAST-BOUND LONGITUDE: -12.248300 * DATE/TIME START: 1985-05-23T09:45:00 * DATE/TIME END: 1985-06-01T07:00:00 |
long_lat |
ENVELOPE(-12.255000,-12.248300,42.143300,42.143300) |
genre |
Newfoundland North Atlantic |
genre_facet |
Newfoundland North Atlantic |
op_source |
Supplement to: Haggerty, Janet A; Smith, Michael P (1988): Characterization of diagenetic fluids of the Upper Jurassic-Lower Cretaceous carbonate platform of the Galicia Margin at Ocean Drilling Program Site 639: evidence for dolomitization by hypersaline brines. In: Boillot, G; Winterer, EL; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 103, 145-153, https://doi.org/10.2973/odp.proc.sr.103.155.1988 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.743488 https://doi.org/10.1594/PANGAEA.743488 |
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.74348810.2973/odp.proc.sr.103.155.1988 |
_version_ |
1810458566047301632 |