Timing and progression of climatic, tectonic and glacioeustatic in£uences on the Messinian Salinity Crisis
New palynological analysis of the continuous Upper Neogene sequence from the Rifian Corridor at Sale¤ (Morocco) permits the deconvolution of climatic, tectonic and eustatic control on the Messinian Salinity Crisis via two indices: (1) a ‘distance-from-shore ’ index based on dinoflagellate cyst versu...
Main Authors: | , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
2003
|
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.660.4076 http://rivernet.ncsu.edu/courselocker/PaleoClimate/Warny+et+al+2003+Mess+Sal+Crisis.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.660.4076 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.660.4076 2023-05-15T13:38:01+02:00 Timing and progression of climatic, tectonic and glacioeustatic in£uences on the Messinian Salinity Crisis S. A. Warny A P. J. Bart A J. -p. Suc B The Pennsylvania State University CiteSeerX Archives 2003 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.660.4076 http://rivernet.ncsu.edu/courselocker/PaleoClimate/Warny+et+al+2003+Mess+Sal+Crisis.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.660.4076 http://rivernet.ncsu.edu/courselocker/PaleoClimate/Warny+et+al+2003+Mess+Sal+Crisis.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://rivernet.ncsu.edu/courselocker/PaleoClimate/Warny+et+al+2003+Mess+Sal+Crisis.pdf palynology Neogene Mediterranean Antarctica dino£agellate Messinian text 2003 ftciteseerx 2016-01-08T16:50:56Z New palynological analysis of the continuous Upper Neogene sequence from the Rifian Corridor at Sale¤ (Morocco) permits the deconvolution of climatic, tectonic and eustatic control on the Messinian Salinity Crisis via two indices: (1) a ‘distance-from-shore ’ index based on dinoflagellate cyst versus pollen distribution, and (2) a land-climate index based on detailed pollen analysis. This new pollen analysis indicates that the Messinian Salinity Crisis (V6.8 Ma to V5.3 Ma) was not associated with major climate change. Detailed analyses of dinoflagellate cyst ecology at Sale ¤ correlated to the Sale ¤ N18O record show that initial shoaling of the Rifian Corridor after V7.3 Ma primarily resulted from tectonic uplift. However, from V6.5 Ma to V5.4 Ma, the Rifian Corridor was sufficiently shallow to have experienced significant restriction of Atlantic inflow during at least four small-amplitude glacioeustatic lowstands. At V5.4 Ma, abrupt increase in the ratio of continental- versus marine-derived palynomorphs indicates that restriction intensified as tectonic uplift significantly outpaced gradual glacioeustatic rise. Despite eustatic rise at V5.32 Ma, the Sale ¤ palynological data show that the Rifian Corridor experienced a second major drop in relative sea level (tectonic uplift or increased sedimentation). Therefore, termination of the Messinian Salinity Crisis was probably associated with a breach elsewhere along the Gibraltar Arc. Text Antarc* Antarctica Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
palynology Neogene Mediterranean Antarctica dino£agellate Messinian |
spellingShingle |
palynology Neogene Mediterranean Antarctica dino£agellate Messinian S. A. Warny A P. J. Bart A J. -p. Suc B Timing and progression of climatic, tectonic and glacioeustatic in£uences on the Messinian Salinity Crisis |
topic_facet |
palynology Neogene Mediterranean Antarctica dino£agellate Messinian |
description |
New palynological analysis of the continuous Upper Neogene sequence from the Rifian Corridor at Sale¤ (Morocco) permits the deconvolution of climatic, tectonic and eustatic control on the Messinian Salinity Crisis via two indices: (1) a ‘distance-from-shore ’ index based on dinoflagellate cyst versus pollen distribution, and (2) a land-climate index based on detailed pollen analysis. This new pollen analysis indicates that the Messinian Salinity Crisis (V6.8 Ma to V5.3 Ma) was not associated with major climate change. Detailed analyses of dinoflagellate cyst ecology at Sale ¤ correlated to the Sale ¤ N18O record show that initial shoaling of the Rifian Corridor after V7.3 Ma primarily resulted from tectonic uplift. However, from V6.5 Ma to V5.4 Ma, the Rifian Corridor was sufficiently shallow to have experienced significant restriction of Atlantic inflow during at least four small-amplitude glacioeustatic lowstands. At V5.4 Ma, abrupt increase in the ratio of continental- versus marine-derived palynomorphs indicates that restriction intensified as tectonic uplift significantly outpaced gradual glacioeustatic rise. Despite eustatic rise at V5.32 Ma, the Sale ¤ palynological data show that the Rifian Corridor experienced a second major drop in relative sea level (tectonic uplift or increased sedimentation). Therefore, termination of the Messinian Salinity Crisis was probably associated with a breach elsewhere along the Gibraltar Arc. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
S. A. Warny A P. J. Bart A J. -p. Suc B |
author_facet |
S. A. Warny A P. J. Bart A J. -p. Suc B |
author_sort |
S. A. Warny A |
title |
Timing and progression of climatic, tectonic and glacioeustatic in£uences on the Messinian Salinity Crisis |
title_short |
Timing and progression of climatic, tectonic and glacioeustatic in£uences on the Messinian Salinity Crisis |
title_full |
Timing and progression of climatic, tectonic and glacioeustatic in£uences on the Messinian Salinity Crisis |
title_fullStr |
Timing and progression of climatic, tectonic and glacioeustatic in£uences on the Messinian Salinity Crisis |
title_full_unstemmed |
Timing and progression of climatic, tectonic and glacioeustatic in£uences on the Messinian Salinity Crisis |
title_sort |
timing and progression of climatic, tectonic and glacioeustatic in£uences on the messinian salinity crisis |
publishDate |
2003 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.660.4076 http://rivernet.ncsu.edu/courselocker/PaleoClimate/Warny+et+al+2003+Mess+Sal+Crisis.pdf |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
http://rivernet.ncsu.edu/courselocker/PaleoClimate/Warny+et+al+2003+Mess+Sal+Crisis.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.660.4076 http://rivernet.ncsu.edu/courselocker/PaleoClimate/Warny+et+al+2003+Mess+Sal+Crisis.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766100625376935936 |