SUNDALAND: BASEMENT CHARACTER, STRUCTURE AND PLATE TECTONIC DEVELOPMENT
Sundaland is a heterogeneous region assembled by closure of Tethyan oceans and addition of Gondwana fragments. Basement structure influenced Cenozoic tectonics. Understanding Cenozoic basins requires a knowledge of the Mesozoic and Early Cenozoic history of Sundaland which is illustrated by a new pl...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.454.6840 2023-05-15T13:38:03+02:00 SUNDALAND: BASEMENT CHARACTER, STRUCTURE AND PLATE TECTONIC DEVELOPMENT Robert Hall Benjamin Clements Helen R. Smyth The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.454.6840 http://searg.rhul.ac.uk/pubs/hall_etal_2009_IPA SE Asia reconstruction.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.454.6840 http://searg.rhul.ac.uk/pubs/hall_etal_2009_IPA SE Asia reconstruction.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://searg.rhul.ac.uk/pubs/hall_etal_2009_IPA SE Asia reconstruction.pdf text ftciteseerx 2016-01-08T06:06:48Z Sundaland is a heterogeneous region assembled by closure of Tethyan oceans and addition of Gondwana fragments. Basement structure influenced Cenozoic tectonics. Understanding Cenozoic basins requires a knowledge of the Mesozoic and Early Cenozoic history of Sundaland which is illustrated by a new plate tectonic reconstruction. Continental blocks rifted from Australia during the Late Jurassic and Early Cretaceous are now in Borneo, Java and Sulawesi, not West Burma. The Banda and Argo blocks collided with the SE Asian margin between 110 and 90 Ma. At 90 Ma the Woyla intra-oceanic arc collided with the Sumatra margin and subduction beneath Sundaland terminated. A marked change in deep mantle structure at about 110°E reflects different subduction histories north of India and Australia. They were separated by a transform that was leaky from 90 to 75 Ma and slightly convergent from 75 to 55 Ma. From 90 Ma, India moved rapidly north with north-directed subduction within Tethys and at the Asian margin. It collided with an intra-oceanic arc at about 55 Ma, west of Sumatra, and continued north to collide with Asia in the Eocene. Between 90 and 45 Ma Australia remained close to Antarctica and there was no subduction beneath Sumatra and Java. During this interval Sundaland was largely surrounded by inactive margins with some strike-slip deformation and extension, except for subduction beneath Sumba–Sulawesi. At 45 Ma Australia began to move north; subduction resumed beneath Indonesia and has continued to the present. The deep NW-SE structural trend of Borneo–West Sulawesi was either inherited from Australian basement or Text Antarc* Antarctica Unknown Sumba ENVELOPE(-6.712,-6.712,61.403,61.403) |
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Unknown |
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ftciteseerx |
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English |
description |
Sundaland is a heterogeneous region assembled by closure of Tethyan oceans and addition of Gondwana fragments. Basement structure influenced Cenozoic tectonics. Understanding Cenozoic basins requires a knowledge of the Mesozoic and Early Cenozoic history of Sundaland which is illustrated by a new plate tectonic reconstruction. Continental blocks rifted from Australia during the Late Jurassic and Early Cretaceous are now in Borneo, Java and Sulawesi, not West Burma. The Banda and Argo blocks collided with the SE Asian margin between 110 and 90 Ma. At 90 Ma the Woyla intra-oceanic arc collided with the Sumatra margin and subduction beneath Sundaland terminated. A marked change in deep mantle structure at about 110°E reflects different subduction histories north of India and Australia. They were separated by a transform that was leaky from 90 to 75 Ma and slightly convergent from 75 to 55 Ma. From 90 Ma, India moved rapidly north with north-directed subduction within Tethys and at the Asian margin. It collided with an intra-oceanic arc at about 55 Ma, west of Sumatra, and continued north to collide with Asia in the Eocene. Between 90 and 45 Ma Australia remained close to Antarctica and there was no subduction beneath Sumatra and Java. During this interval Sundaland was largely surrounded by inactive margins with some strike-slip deformation and extension, except for subduction beneath Sumba–Sulawesi. At 45 Ma Australia began to move north; subduction resumed beneath Indonesia and has continued to the present. The deep NW-SE structural trend of Borneo–West Sulawesi was either inherited from Australian basement or |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Robert Hall Benjamin Clements Helen R. Smyth |
spellingShingle |
Robert Hall Benjamin Clements Helen R. Smyth SUNDALAND: BASEMENT CHARACTER, STRUCTURE AND PLATE TECTONIC DEVELOPMENT |
author_facet |
Robert Hall Benjamin Clements Helen R. Smyth |
author_sort |
Robert Hall |
title |
SUNDALAND: BASEMENT CHARACTER, STRUCTURE AND PLATE TECTONIC DEVELOPMENT |
title_short |
SUNDALAND: BASEMENT CHARACTER, STRUCTURE AND PLATE TECTONIC DEVELOPMENT |
title_full |
SUNDALAND: BASEMENT CHARACTER, STRUCTURE AND PLATE TECTONIC DEVELOPMENT |
title_fullStr |
SUNDALAND: BASEMENT CHARACTER, STRUCTURE AND PLATE TECTONIC DEVELOPMENT |
title_full_unstemmed |
SUNDALAND: BASEMENT CHARACTER, STRUCTURE AND PLATE TECTONIC DEVELOPMENT |
title_sort |
sundaland: basement character, structure and plate tectonic development |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.454.6840 http://searg.rhul.ac.uk/pubs/hall_etal_2009_IPA SE Asia reconstruction.pdf |
long_lat |
ENVELOPE(-6.712,-6.712,61.403,61.403) |
geographic |
Sumba |
geographic_facet |
Sumba |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
http://searg.rhul.ac.uk/pubs/hall_etal_2009_IPA SE Asia reconstruction.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.454.6840 http://searg.rhul.ac.uk/pubs/hall_etal_2009_IPA SE Asia reconstruction.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766100970363682816 |