Palynological evidence for sustained deep-marine conditions during the Eocene−Miocene in the southern Gulf of Mexico distal continental margin
The present study represents the first attempt to provide palynological data about the southern Gulf of Mexico distal continental margin during the Eocene-Miocene time interval. In addition to documenting the types of fossil palynomorphs preserved in these economically critical rock Two palynofacies...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Barron, Adam [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016 |
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| Rechteinformationen: |
Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Geological Society of America bulletin - Boulder, Colo. [u.a.] : Geological Society of America, 1890, 129(2016), 1-2, Seite 218 |
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| Übergeordnetes Werk: |
volume:129 ; year:2016 ; number:1-2 ; pages:218 |
| Links: |
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| DOI / URN: |
10.1130/B31559.1 |
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| Katalog-ID: |
OLC1988317355 |
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| 245 | 1 | 0 | |a Palynological evidence for sustained deep-marine conditions during the Eocene−Miocene in the southern Gulf of Mexico distal continental margin |
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| 520 | |a The present study represents the first attempt to provide palynological data about the southern Gulf of Mexico distal continental margin during the Eocene-Miocene time interval. In addition to documenting the types of fossil palynomorphs preserved in these economically critical rock Two palynofacies assemblages were recognized based on particulate organic matter analysis: marine-dominated palynofacies A and terrestrially influenced palynofacies B. The organic compositions of these two palynofacies along with the recovered dinoflagellate cyst community suggest that while sustained oceanic depositional conditions were prevalent, occasional influxes of terrestrial organic material of variable magnitudes occurred. These short-term influxes were especially pronounced during the late Eocene and earliest Oligocene and appear to have happened in response to the cooling and slight global sea-level drop that occurred at ca. 38-33.5 Ma. The preserved terrestrial palynomorphs in the samples indicate coastal plain and estuarine vegetation sources in general, except during the Eocene-Oligocene transition, when anemophilous pollen specimens mostly derived from farther inland and montane sources were recovered. | ||
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| 650 | 4 | |a Vegetation | |
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10.1130/B31559.1 doi PQ20170206 (DE-627)OLC1988317355 (DE-599)GBVOLC1988317355 (PRQ)c1444-25467ab0d7d5ca0d75c3b7df00e4439eeaa21f0c9a3a2cbdbb139ca5445b77600 (KEY)0093391020160000129000100218palynologicalevidenceforsustaineddeepmarineconditi DE-627 ger DE-627 rakwb eng 550 DNB Barron, Adam verfasserin aut Palynological evidence for sustained deep-marine conditions during the Eocene−Miocene in the southern Gulf of Mexico distal continental margin 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The present study represents the first attempt to provide palynological data about the southern Gulf of Mexico distal continental margin during the Eocene-Miocene time interval. In addition to documenting the types of fossil palynomorphs preserved in these economically critical rock Two palynofacies assemblages were recognized based on particulate organic matter analysis: marine-dominated palynofacies A and terrestrially influenced palynofacies B. The organic compositions of these two palynofacies along with the recovered dinoflagellate cyst community suggest that while sustained oceanic depositional conditions were prevalent, occasional influxes of terrestrial organic material of variable magnitudes occurred. These short-term influxes were especially pronounced during the late Eocene and earliest Oligocene and appear to have happened in response to the cooling and slight global sea-level drop that occurred at ca. 38-33.5 Ma. The preserved terrestrial palynomorphs in the samples indicate coastal plain and estuarine vegetation sources in general, except during the Eocene-Oligocene transition, when anemophilous pollen specimens mostly derived from farther inland and montane sources were recovered. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Geological research Facies (Geology) Research Continental margins Vegetation Drilling Coastal plains Airborne particulates Sediments Zobaa, Mohamed K oth Oboh-Ikuenobe, Francisca E oth Enthalten in Geological Society of America bulletin Boulder, Colo. [u.a.] : Geological Society of America, 1890 129(2016), 1-2, Seite 218 (DE-627)129067199 (DE-600)1351-1 (DE-576)014398621 0016-7606 nnns volume:129 year:2016 number:1-2 pages:218 http://dx.doi.org/10.1130/B31559.1 Volltext http://search.proquest.com/docview/1856103838 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_70 GBV_ILN_188 GBV_ILN_2010 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 AR 129 2016 1-2 218 |
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10.1130/B31559.1 doi PQ20170206 (DE-627)OLC1988317355 (DE-599)GBVOLC1988317355 (PRQ)c1444-25467ab0d7d5ca0d75c3b7df00e4439eeaa21f0c9a3a2cbdbb139ca5445b77600 (KEY)0093391020160000129000100218palynologicalevidenceforsustaineddeepmarineconditi DE-627 ger DE-627 rakwb eng 550 DNB Barron, Adam verfasserin aut Palynological evidence for sustained deep-marine conditions during the Eocene−Miocene in the southern Gulf of Mexico distal continental margin 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The present study represents the first attempt to provide palynological data about the southern Gulf of Mexico distal continental margin during the Eocene-Miocene time interval. In addition to documenting the types of fossil palynomorphs preserved in these economically critical rock Two palynofacies assemblages were recognized based on particulate organic matter analysis: marine-dominated palynofacies A and terrestrially influenced palynofacies B. The organic compositions of these two palynofacies along with the recovered dinoflagellate cyst community suggest that while sustained oceanic depositional conditions were prevalent, occasional influxes of terrestrial organic material of variable magnitudes occurred. These short-term influxes were especially pronounced during the late Eocene and earliest Oligocene and appear to have happened in response to the cooling and slight global sea-level drop that occurred at ca. 38-33.5 Ma. The preserved terrestrial palynomorphs in the samples indicate coastal plain and estuarine vegetation sources in general, except during the Eocene-Oligocene transition, when anemophilous pollen specimens mostly derived from farther inland and montane sources were recovered. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Geological research Facies (Geology) Research Continental margins Vegetation Drilling Coastal plains Airborne particulates Sediments Zobaa, Mohamed K oth Oboh-Ikuenobe, Francisca E oth Enthalten in Geological Society of America bulletin Boulder, Colo. [u.a.] : Geological Society of America, 1890 129(2016), 1-2, Seite 218 (DE-627)129067199 (DE-600)1351-1 (DE-576)014398621 0016-7606 nnns volume:129 year:2016 number:1-2 pages:218 http://dx.doi.org/10.1130/B31559.1 Volltext http://search.proquest.com/docview/1856103838 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_70 GBV_ILN_188 GBV_ILN_2010 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 AR 129 2016 1-2 218 |
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10.1130/B31559.1 doi PQ20170206 (DE-627)OLC1988317355 (DE-599)GBVOLC1988317355 (PRQ)c1444-25467ab0d7d5ca0d75c3b7df00e4439eeaa21f0c9a3a2cbdbb139ca5445b77600 (KEY)0093391020160000129000100218palynologicalevidenceforsustaineddeepmarineconditi DE-627 ger DE-627 rakwb eng 550 DNB Barron, Adam verfasserin aut Palynological evidence for sustained deep-marine conditions during the Eocene−Miocene in the southern Gulf of Mexico distal continental margin 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The present study represents the first attempt to provide palynological data about the southern Gulf of Mexico distal continental margin during the Eocene-Miocene time interval. In addition to documenting the types of fossil palynomorphs preserved in these economically critical rock Two palynofacies assemblages were recognized based on particulate organic matter analysis: marine-dominated palynofacies A and terrestrially influenced palynofacies B. The organic compositions of these two palynofacies along with the recovered dinoflagellate cyst community suggest that while sustained oceanic depositional conditions were prevalent, occasional influxes of terrestrial organic material of variable magnitudes occurred. These short-term influxes were especially pronounced during the late Eocene and earliest Oligocene and appear to have happened in response to the cooling and slight global sea-level drop that occurred at ca. 38-33.5 Ma. The preserved terrestrial palynomorphs in the samples indicate coastal plain and estuarine vegetation sources in general, except during the Eocene-Oligocene transition, when anemophilous pollen specimens mostly derived from farther inland and montane sources were recovered. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Geological research Facies (Geology) Research Continental margins Vegetation Drilling Coastal plains Airborne particulates Sediments Zobaa, Mohamed K oth Oboh-Ikuenobe, Francisca E oth Enthalten in Geological Society of America bulletin Boulder, Colo. [u.a.] : Geological Society of America, 1890 129(2016), 1-2, Seite 218 (DE-627)129067199 (DE-600)1351-1 (DE-576)014398621 0016-7606 nnns volume:129 year:2016 number:1-2 pages:218 http://dx.doi.org/10.1130/B31559.1 Volltext http://search.proquest.com/docview/1856103838 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_70 GBV_ILN_188 GBV_ILN_2010 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 AR 129 2016 1-2 218 |
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10.1130/B31559.1 doi PQ20170206 (DE-627)OLC1988317355 (DE-599)GBVOLC1988317355 (PRQ)c1444-25467ab0d7d5ca0d75c3b7df00e4439eeaa21f0c9a3a2cbdbb139ca5445b77600 (KEY)0093391020160000129000100218palynologicalevidenceforsustaineddeepmarineconditi DE-627 ger DE-627 rakwb eng 550 DNB Barron, Adam verfasserin aut Palynological evidence for sustained deep-marine conditions during the Eocene−Miocene in the southern Gulf of Mexico distal continental margin 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The present study represents the first attempt to provide palynological data about the southern Gulf of Mexico distal continental margin during the Eocene-Miocene time interval. In addition to documenting the types of fossil palynomorphs preserved in these economically critical rock Two palynofacies assemblages were recognized based on particulate organic matter analysis: marine-dominated palynofacies A and terrestrially influenced palynofacies B. The organic compositions of these two palynofacies along with the recovered dinoflagellate cyst community suggest that while sustained oceanic depositional conditions were prevalent, occasional influxes of terrestrial organic material of variable magnitudes occurred. These short-term influxes were especially pronounced during the late Eocene and earliest Oligocene and appear to have happened in response to the cooling and slight global sea-level drop that occurred at ca. 38-33.5 Ma. The preserved terrestrial palynomorphs in the samples indicate coastal plain and estuarine vegetation sources in general, except during the Eocene-Oligocene transition, when anemophilous pollen specimens mostly derived from farther inland and montane sources were recovered. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Geological research Facies (Geology) Research Continental margins Vegetation Drilling Coastal plains Airborne particulates Sediments Zobaa, Mohamed K oth Oboh-Ikuenobe, Francisca E oth Enthalten in Geological Society of America bulletin Boulder, Colo. [u.a.] : Geological Society of America, 1890 129(2016), 1-2, Seite 218 (DE-627)129067199 (DE-600)1351-1 (DE-576)014398621 0016-7606 nnns volume:129 year:2016 number:1-2 pages:218 http://dx.doi.org/10.1130/B31559.1 Volltext http://search.proquest.com/docview/1856103838 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_70 GBV_ILN_188 GBV_ILN_2010 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 AR 129 2016 1-2 218 |
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10.1130/B31559.1 doi PQ20170206 (DE-627)OLC1988317355 (DE-599)GBVOLC1988317355 (PRQ)c1444-25467ab0d7d5ca0d75c3b7df00e4439eeaa21f0c9a3a2cbdbb139ca5445b77600 (KEY)0093391020160000129000100218palynologicalevidenceforsustaineddeepmarineconditi DE-627 ger DE-627 rakwb eng 550 DNB Barron, Adam verfasserin aut Palynological evidence for sustained deep-marine conditions during the Eocene−Miocene in the southern Gulf of Mexico distal continental margin 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The present study represents the first attempt to provide palynological data about the southern Gulf of Mexico distal continental margin during the Eocene-Miocene time interval. In addition to documenting the types of fossil palynomorphs preserved in these economically critical rock Two palynofacies assemblages were recognized based on particulate organic matter analysis: marine-dominated palynofacies A and terrestrially influenced palynofacies B. The organic compositions of these two palynofacies along with the recovered dinoflagellate cyst community suggest that while sustained oceanic depositional conditions were prevalent, occasional influxes of terrestrial organic material of variable magnitudes occurred. These short-term influxes were especially pronounced during the late Eocene and earliest Oligocene and appear to have happened in response to the cooling and slight global sea-level drop that occurred at ca. 38-33.5 Ma. The preserved terrestrial palynomorphs in the samples indicate coastal plain and estuarine vegetation sources in general, except during the Eocene-Oligocene transition, when anemophilous pollen specimens mostly derived from farther inland and montane sources were recovered. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Geological research Facies (Geology) Research Continental margins Vegetation Drilling Coastal plains Airborne particulates Sediments Zobaa, Mohamed K oth Oboh-Ikuenobe, Francisca E oth Enthalten in Geological Society of America bulletin Boulder, Colo. [u.a.] : Geological Society of America, 1890 129(2016), 1-2, Seite 218 (DE-627)129067199 (DE-600)1351-1 (DE-576)014398621 0016-7606 nnns volume:129 year:2016 number:1-2 pages:218 http://dx.doi.org/10.1130/B31559.1 Volltext http://search.proquest.com/docview/1856103838 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_70 GBV_ILN_188 GBV_ILN_2010 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 AR 129 2016 1-2 218 |
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Palynological evidence for sustained deep-marine conditions during the Eocene−Miocene in the southern Gulf of Mexico distal continental margin |
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palynological evidence for sustained deep-marine conditions during the eocene−miocene in the southern gulf of mexico distal continental margin |
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Palynological evidence for sustained deep-marine conditions during the Eocene−Miocene in the southern Gulf of Mexico distal continental margin |
| abstract |
The present study represents the first attempt to provide palynological data about the southern Gulf of Mexico distal continental margin during the Eocene-Miocene time interval. In addition to documenting the types of fossil palynomorphs preserved in these economically critical rock Two palynofacies assemblages were recognized based on particulate organic matter analysis: marine-dominated palynofacies A and terrestrially influenced palynofacies B. The organic compositions of these two palynofacies along with the recovered dinoflagellate cyst community suggest that while sustained oceanic depositional conditions were prevalent, occasional influxes of terrestrial organic material of variable magnitudes occurred. These short-term influxes were especially pronounced during the late Eocene and earliest Oligocene and appear to have happened in response to the cooling and slight global sea-level drop that occurred at ca. 38-33.5 Ma. The preserved terrestrial palynomorphs in the samples indicate coastal plain and estuarine vegetation sources in general, except during the Eocene-Oligocene transition, when anemophilous pollen specimens mostly derived from farther inland and montane sources were recovered. |
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The present study represents the first attempt to provide palynological data about the southern Gulf of Mexico distal continental margin during the Eocene-Miocene time interval. In addition to documenting the types of fossil palynomorphs preserved in these economically critical rock Two palynofacies assemblages were recognized based on particulate organic matter analysis: marine-dominated palynofacies A and terrestrially influenced palynofacies B. The organic compositions of these two palynofacies along with the recovered dinoflagellate cyst community suggest that while sustained oceanic depositional conditions were prevalent, occasional influxes of terrestrial organic material of variable magnitudes occurred. These short-term influxes were especially pronounced during the late Eocene and earliest Oligocene and appear to have happened in response to the cooling and slight global sea-level drop that occurred at ca. 38-33.5 Ma. The preserved terrestrial palynomorphs in the samples indicate coastal plain and estuarine vegetation sources in general, except during the Eocene-Oligocene transition, when anemophilous pollen specimens mostly derived from farther inland and montane sources were recovered. |
| abstract_unstemmed |
The present study represents the first attempt to provide palynological data about the southern Gulf of Mexico distal continental margin during the Eocene-Miocene time interval. In addition to documenting the types of fossil palynomorphs preserved in these economically critical rock Two palynofacies assemblages were recognized based on particulate organic matter analysis: marine-dominated palynofacies A and terrestrially influenced palynofacies B. The organic compositions of these two palynofacies along with the recovered dinoflagellate cyst community suggest that while sustained oceanic depositional conditions were prevalent, occasional influxes of terrestrial organic material of variable magnitudes occurred. These short-term influxes were especially pronounced during the late Eocene and earliest Oligocene and appear to have happened in response to the cooling and slight global sea-level drop that occurred at ca. 38-33.5 Ma. The preserved terrestrial palynomorphs in the samples indicate coastal plain and estuarine vegetation sources in general, except during the Eocene-Oligocene transition, when anemophilous pollen specimens mostly derived from farther inland and montane sources were recovered. |
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Palynological evidence for sustained deep-marine conditions during the Eocene−Miocene in the southern Gulf of Mexico distal continental margin |
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