Upper Jurassic (Portlandian) sedimentology and palynofacies of Cabo Espichel, Portugal
Thesis (M.Sc.)--Memorial University of Newfoundland, 1986. Earth Sciences Bibliography: leaves 209-239 Upper Jurassic (Portlandian) strata on the southeastern margin of the Lusitanian Basin at Praia-do Cavalo, near Cabo Espichel, Portugal contain mixed carbonate and clastic sediments. From this sect...
Main Author: | |
---|---|
Format: | Thesis |
Language: | English |
Published: |
1986
|
Subjects: | |
Online Access: | http://collections.mun.ca/cdm/ref/collection/theses3/id/36437 |
id |
ftmemorialunivdc:oai:collections.mun.ca:theses3/36437 |
---|---|
record_format |
openpolar |
spelling |
ftmemorialunivdc:oai:collections.mun.ca:theses3/36437 2023-05-15T17:23:32+02:00 Upper Jurassic (Portlandian) sedimentology and palynofacies of Cabo Espichel, Portugal Boland, David Craig Canada--Newfoundland and Labrador; Portugal 1986 xii, 261 leaves, [7] charts in pocket at back : ill., maps Image/jpeg; Application/pdf http://collections.mun.ca/cdm/ref/collection/theses3/id/36437 eng eng Electronic Theses and Dissertations (28.73 MB) -- http://collections.mun.ca/PDFs/theses/Boland_DavidCraig.pdf 75380784 http://collections.mun.ca/cdm/ref/collection/theses3/id/36437 The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries Sediments (Geology)--Portugal Palynology--Portugal Geology Stratigraphic--Jurassic Geology--Portugal Text Electronic thesis or dissertation 1986 ftmemorialunivdc 2015-08-06T19:17:53Z Thesis (M.Sc.)--Memorial University of Newfoundland, 1986. Earth Sciences Bibliography: leaves 209-239 Upper Jurassic (Portlandian) strata on the southeastern margin of the Lusitanian Basin at Praia-do Cavalo, near Cabo Espichel, Portugal contain mixed carbonate and clastic sediments. From this section ten facies were identified to produce a model of Upper Jurassic shelf development on a passive Atlantic-type margin. -- The model consists of carbonate shelf and clastic deltaio sediments linked by erosional and non-erosional contacts. The shallow marginal marine carbonate sequence consists of intertidal and low energy and high energy subtidal environments. The clastic sequence consists of interdistributary bay fill, crevasse splay, levee, channel, distributary mouth bar and delta front environments. Non-erosional boundaries occur where levees, crevasse splays and bay fill prograde over shallow subtidal nodular limestones- and calcareous shales. Erosional, boundaries occur where distributary channels soour through distributary mouth bars and prodelta strata to sharply - rest upon lithified massive subtidal limestones. -- The miospore assemblage consists of 49 terrestrial and 4 marine speciesin samples dominated - by Corolllna (ClassQppllJs) , Exesipollenites and Spherloollcnites. Three palynofacies are idenfcifed; the Csimplex palynofacias is associated with siliciclastic lithologies; C.itunensis palynofacies is restricted to the carbonates and; the marine palynomorph facies is characteristic of some carbonates and delta front sillciclastics. -- The C. simplex - sediment association indicates that this pollen was derived from a plant which occupied an inland marsh or levee environment. The C.itunensis - sediment association implies a plant living on or near a marginal marine carbonate coast resembling a "mangrove" or saltmarsh environment. Thesis Newfoundland studies University of Newfoundland Memorial University of Newfoundland: Digital Archives Initiative (DAI) Canada Newfoundland |
institution |
Open Polar |
collection |
Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
op_collection_id |
ftmemorialunivdc |
language |
English |
topic |
Sediments (Geology)--Portugal Palynology--Portugal Geology Stratigraphic--Jurassic Geology--Portugal |
spellingShingle |
Sediments (Geology)--Portugal Palynology--Portugal Geology Stratigraphic--Jurassic Geology--Portugal Boland, David Craig Upper Jurassic (Portlandian) sedimentology and palynofacies of Cabo Espichel, Portugal |
topic_facet |
Sediments (Geology)--Portugal Palynology--Portugal Geology Stratigraphic--Jurassic Geology--Portugal |
description |
Thesis (M.Sc.)--Memorial University of Newfoundland, 1986. Earth Sciences Bibliography: leaves 209-239 Upper Jurassic (Portlandian) strata on the southeastern margin of the Lusitanian Basin at Praia-do Cavalo, near Cabo Espichel, Portugal contain mixed carbonate and clastic sediments. From this section ten facies were identified to produce a model of Upper Jurassic shelf development on a passive Atlantic-type margin. -- The model consists of carbonate shelf and clastic deltaio sediments linked by erosional and non-erosional contacts. The shallow marginal marine carbonate sequence consists of intertidal and low energy and high energy subtidal environments. The clastic sequence consists of interdistributary bay fill, crevasse splay, levee, channel, distributary mouth bar and delta front environments. Non-erosional boundaries occur where levees, crevasse splays and bay fill prograde over shallow subtidal nodular limestones- and calcareous shales. Erosional, boundaries occur where distributary channels soour through distributary mouth bars and prodelta strata to sharply - rest upon lithified massive subtidal limestones. -- The miospore assemblage consists of 49 terrestrial and 4 marine speciesin samples dominated - by Corolllna (ClassQppllJs) , Exesipollenites and Spherloollcnites. Three palynofacies are idenfcifed; the Csimplex palynofacias is associated with siliciclastic lithologies; C.itunensis palynofacies is restricted to the carbonates and; the marine palynomorph facies is characteristic of some carbonates and delta front sillciclastics. -- The C. simplex - sediment association indicates that this pollen was derived from a plant which occupied an inland marsh or levee environment. The C.itunensis - sediment association implies a plant living on or near a marginal marine carbonate coast resembling a "mangrove" or saltmarsh environment. |
format |
Thesis |
author |
Boland, David Craig |
author_facet |
Boland, David Craig |
author_sort |
Boland, David Craig |
title |
Upper Jurassic (Portlandian) sedimentology and palynofacies of Cabo Espichel, Portugal |
title_short |
Upper Jurassic (Portlandian) sedimentology and palynofacies of Cabo Espichel, Portugal |
title_full |
Upper Jurassic (Portlandian) sedimentology and palynofacies of Cabo Espichel, Portugal |
title_fullStr |
Upper Jurassic (Portlandian) sedimentology and palynofacies of Cabo Espichel, Portugal |
title_full_unstemmed |
Upper Jurassic (Portlandian) sedimentology and palynofacies of Cabo Espichel, Portugal |
title_sort |
upper jurassic (portlandian) sedimentology and palynofacies of cabo espichel, portugal |
publishDate |
1986 |
url |
http://collections.mun.ca/cdm/ref/collection/theses3/id/36437 |
op_coverage |
Canada--Newfoundland and Labrador; Portugal |
geographic |
Canada Newfoundland |
geographic_facet |
Canada Newfoundland |
genre |
Newfoundland studies University of Newfoundland |
genre_facet |
Newfoundland studies University of Newfoundland |
op_source |
Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries |
op_relation |
Electronic Theses and Dissertations (28.73 MB) -- http://collections.mun.ca/PDFs/theses/Boland_DavidCraig.pdf 75380784 http://collections.mun.ca/cdm/ref/collection/theses3/id/36437 |
op_rights |
The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. |
_version_ |
1766113065352298496 |