The rifting history of the Newfoundland-Iberia conjugate margins: A geodynamic analysis
Rifting between Newfoundland and Iberia occurred in two distinct phases--the first late Triassic to early Jurassic, the second late Jurassic to early Cretaceous--culminating in the creation of the North Atlantic Ocean. A dynamic modelling method was used to examine the implications of multiple phase...
Main Author: | |
---|---|
Other Authors: | |
Format: | Thesis |
Language: | English |
Published: |
1994
|
Subjects: | |
Online Access: | https://hdl.handle.net/1911/13907 |
id |
ftriceuniv:oai:scholarship.rice.edu:1911/13907 |
---|---|
record_format |
openpolar |
spelling |
ftriceuniv:oai:scholarship.rice.edu:1911/13907 2023-05-15T17:17:18+02:00 The rifting history of the Newfoundland-Iberia conjugate margins: A geodynamic analysis Tett, David L. Sawyer, Dale S. 1994 153 p. application/pdf https://hdl.handle.net/1911/13907 eng eng Tett, David L. "The rifting history of the Newfoundland-Iberia conjugate margins: A geodynamic analysis." (1994) Master’s Thesis, Rice University. https://hdl.handle.net/1911/13907 . https://hdl.handle.net/1911/13907 THESIS GEOL. 1994 TETT Geophysics Thesis Text 1994 ftriceuniv 2022-08-09T20:28:46Z Rifting between Newfoundland and Iberia occurred in two distinct phases--the first late Triassic to early Jurassic, the second late Jurassic to early Cretaceous--culminating in the creation of the North Atlantic Ocean. A dynamic modelling method was used to examine the implications of multiple phases of rifting on the development of the Newfoundland-Iberia conjugate margins. The models predicted a lack of magmatism on these margins, and suggested that extension was significantly greater in the second rifting phase than in the first; these predictions agree with geological observations. The models could not predict the existence of highly thinned continental crust on both conjugate margins, however. In addition, a set of generic models roughly based on the Newfoundland and Iberia margins suggested that, where two rift phases occur, the site of the original rift usually will not be favored for extension when stretching resumes. Thesis Newfoundland North Atlantic Rice University: Digital Scholarship Archive |
institution |
Open Polar |
collection |
Rice University: Digital Scholarship Archive |
op_collection_id |
ftriceuniv |
language |
English |
topic |
Geophysics |
spellingShingle |
Geophysics Tett, David L. The rifting history of the Newfoundland-Iberia conjugate margins: A geodynamic analysis |
topic_facet |
Geophysics |
description |
Rifting between Newfoundland and Iberia occurred in two distinct phases--the first late Triassic to early Jurassic, the second late Jurassic to early Cretaceous--culminating in the creation of the North Atlantic Ocean. A dynamic modelling method was used to examine the implications of multiple phases of rifting on the development of the Newfoundland-Iberia conjugate margins. The models predicted a lack of magmatism on these margins, and suggested that extension was significantly greater in the second rifting phase than in the first; these predictions agree with geological observations. The models could not predict the existence of highly thinned continental crust on both conjugate margins, however. In addition, a set of generic models roughly based on the Newfoundland and Iberia margins suggested that, where two rift phases occur, the site of the original rift usually will not be favored for extension when stretching resumes. |
author2 |
Sawyer, Dale S. |
format |
Thesis |
author |
Tett, David L. |
author_facet |
Tett, David L. |
author_sort |
Tett, David L. |
title |
The rifting history of the Newfoundland-Iberia conjugate margins: A geodynamic analysis |
title_short |
The rifting history of the Newfoundland-Iberia conjugate margins: A geodynamic analysis |
title_full |
The rifting history of the Newfoundland-Iberia conjugate margins: A geodynamic analysis |
title_fullStr |
The rifting history of the Newfoundland-Iberia conjugate margins: A geodynamic analysis |
title_full_unstemmed |
The rifting history of the Newfoundland-Iberia conjugate margins: A geodynamic analysis |
title_sort |
rifting history of the newfoundland-iberia conjugate margins: a geodynamic analysis |
publishDate |
1994 |
url |
https://hdl.handle.net/1911/13907 |
genre |
Newfoundland North Atlantic |
genre_facet |
Newfoundland North Atlantic |
op_relation |
Tett, David L. "The rifting history of the Newfoundland-Iberia conjugate margins: A geodynamic analysis." (1994) Master’s Thesis, Rice University. https://hdl.handle.net/1911/13907 . https://hdl.handle.net/1911/13907 THESIS GEOL. 1994 TETT |
_version_ |
1766083847368212480 |