(Table 2) Organic residue at DSDP Hole 76-534A
The kind, sedimentation rate, and diagenesis of organic particles delivered to the North Atlantic seafloor during the Middle Jurassic-Early Cretaceous were responsible for the presence of carbonaceous sediments in Hole 534A. Organic-rich black clays formed from the rapid supply of organic matter; th...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.809985 2023-05-15T17:32:35+02:00 (Table 2) Organic residue at DSDP Hole 76-534A Habib, Daniel LATITUDE: 28.343300 * LONGITUDE: -75.381700 * DATE/TIME START: 1980-10-21T00:00:00 * DATE/TIME END: 1980-10-21T00:00:00 * MINIMUM ELEVATION: -4971.0 m * MAXIMUM ELEVATION: -4971.0 m 1983-04-09 text/tab-separated-values, 447 data points https://doi.pangaea.de/10.1594/PANGAEA.809985 https://doi.org/10.1594/PANGAEA.809985 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.809985 https://doi.org/10.1594/PANGAEA.809985 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Habib, Daniel (1983): Sedimentation-rate-dependent distribution of organic matter in the North Atlantic Jurassic-Cretaceous. In: Sheridan, RE; Gradstein, FM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 76, 781-794, https://doi.org/10.2973/dsdp.proc.76.139.1983 - 76-534A Comment Deep Sea Drilling Project DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Glomar Challenger Leg76 North Atlantic/BASIN Organic matter Sample code/label Dataset 1983 ftpangaea https://doi.org/10.1594/PANGAEA.809985 https://doi.org/10.2973/dsdp.proc.76.139.1983 2023-01-20T09:00:58Z The kind, sedimentation rate, and diagenesis of organic particles delivered to the North Atlantic seafloor during the Middle Jurassic-Early Cretaceous were responsible for the presence of carbonaceous sediments in Hole 534A. Organic-rich black clays formed from the rapid supply of organic matter; this organic matter was composed of either abundant, well-preserved, and poorly sorted particles of land plants deposited in clays and silty clays within terrigenous turbiditic sequences (tracheal facies) or abundant amorphous debris (xenomorphic facies) generated through the digestive tracts of marine zooplankton and sedimented as fecal pellets. Evidence for the fecal-pellet origin of xenomorphic debris is illustrated. Black clays were also produced in sediments containing less organic matter as a result of the black color of carbonized particles composing all or most of the residues (micrinitic facies). Slowly sedimented hematitic Aptian clays contain very little carbonized, organic debris that survived diagenetic oxidation. In the red calcareous clay sequence of the Late Jurassic, larger amounts of this oxidized debris turned several clay layers black or blackish red. Carbonized debris also dominates the residues recovered in interbedded black and green Albian clays. Carbonization of organic matter in these sediments either turned them black or provided the diagenetic environment for reduced iron. Carbonized debris is also appreciable in burrow-mottled black-green Kimmeridgian clay. The study of Hole 534A organic matter indicates that during the middle Callovian there was a rapid supply of terrigenous organic matter, followed by a late Callovian episode of rapidly supplied xenomorphic debris deposited as fecal pellets. The Late Jurassic-Berriasian was a time of slower sedimentation of organic matter, primarily of a marine dinoflagellate flora in a poorly preserved xenomorphic facies variously affected by diagenetic oxidation. Several intervals of carbonized tracheal tissue in the Oxfordian and Kimmeridgian suggest ... Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-75.381700,-75.381700,28.343300,28.343300) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
- 76-534A Comment Deep Sea Drilling Project DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Glomar Challenger Leg76 North Atlantic/BASIN Organic matter Sample code/label |
spellingShingle |
- 76-534A Comment Deep Sea Drilling Project DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Glomar Challenger Leg76 North Atlantic/BASIN Organic matter Sample code/label Habib, Daniel (Table 2) Organic residue at DSDP Hole 76-534A |
topic_facet |
- 76-534A Comment Deep Sea Drilling Project DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Glomar Challenger Leg76 North Atlantic/BASIN Organic matter Sample code/label |
description |
The kind, sedimentation rate, and diagenesis of organic particles delivered to the North Atlantic seafloor during the Middle Jurassic-Early Cretaceous were responsible for the presence of carbonaceous sediments in Hole 534A. Organic-rich black clays formed from the rapid supply of organic matter; this organic matter was composed of either abundant, well-preserved, and poorly sorted particles of land plants deposited in clays and silty clays within terrigenous turbiditic sequences (tracheal facies) or abundant amorphous debris (xenomorphic facies) generated through the digestive tracts of marine zooplankton and sedimented as fecal pellets. Evidence for the fecal-pellet origin of xenomorphic debris is illustrated. Black clays were also produced in sediments containing less organic matter as a result of the black color of carbonized particles composing all or most of the residues (micrinitic facies). Slowly sedimented hematitic Aptian clays contain very little carbonized, organic debris that survived diagenetic oxidation. In the red calcareous clay sequence of the Late Jurassic, larger amounts of this oxidized debris turned several clay layers black or blackish red. Carbonized debris also dominates the residues recovered in interbedded black and green Albian clays. Carbonization of organic matter in these sediments either turned them black or provided the diagenetic environment for reduced iron. Carbonized debris is also appreciable in burrow-mottled black-green Kimmeridgian clay. The study of Hole 534A organic matter indicates that during the middle Callovian there was a rapid supply of terrigenous organic matter, followed by a late Callovian episode of rapidly supplied xenomorphic debris deposited as fecal pellets. The Late Jurassic-Berriasian was a time of slower sedimentation of organic matter, primarily of a marine dinoflagellate flora in a poorly preserved xenomorphic facies variously affected by diagenetic oxidation. Several intervals of carbonized tracheal tissue in the Oxfordian and Kimmeridgian suggest ... |
format |
Dataset |
author |
Habib, Daniel |
author_facet |
Habib, Daniel |
author_sort |
Habib, Daniel |
title |
(Table 2) Organic residue at DSDP Hole 76-534A |
title_short |
(Table 2) Organic residue at DSDP Hole 76-534A |
title_full |
(Table 2) Organic residue at DSDP Hole 76-534A |
title_fullStr |
(Table 2) Organic residue at DSDP Hole 76-534A |
title_full_unstemmed |
(Table 2) Organic residue at DSDP Hole 76-534A |
title_sort |
(table 2) organic residue at dsdp hole 76-534a |
publisher |
PANGAEA |
publishDate |
1983 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.809985 https://doi.org/10.1594/PANGAEA.809985 |
op_coverage |
LATITUDE: 28.343300 * LONGITUDE: -75.381700 * DATE/TIME START: 1980-10-21T00:00:00 * DATE/TIME END: 1980-10-21T00:00:00 * MINIMUM ELEVATION: -4971.0 m * MAXIMUM ELEVATION: -4971.0 m |
long_lat |
ENVELOPE(-75.381700,-75.381700,28.343300,28.343300) |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Habib, Daniel (1983): Sedimentation-rate-dependent distribution of organic matter in the North Atlantic Jurassic-Cretaceous. In: Sheridan, RE; Gradstein, FM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 76, 781-794, https://doi.org/10.2973/dsdp.proc.76.139.1983 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.809985 https://doi.org/10.1594/PANGAEA.809985 |
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.809985 https://doi.org/10.2973/dsdp.proc.76.139.1983 |
_version_ |
1766130784465321984 |