Kinematics associated with late Cenozoic deformation in central Costa Rica: western boundary of the Panama microplate

Donald Myron Fisher, T. W. Gardner, J. S. Marshall, W. Montero P.

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The paper presents kinematic data for late Cenozoic deformation in central Costa Rica that marks the western margin of the Panama microplate (ie the Caribbean-Panama boundary). Terrace correlation and basin asymmetry indicate a major change in tectonic evolution across the boundary, where three regional northeast-striking faults intersect the Pacific coast. Mesoscopic fault populations are consistent with transtension across these north-east-striking faults and with transpression within the east-trending Valle Central. This late Tertiary and Quaternary transcurrent deformation links the North Panama deformed belt to the east with the Middle America Trench to the west. This deformation marks the western extent of the Panama microplate, a fragment of volcanic arc that separated from the Caribbean plate in the late Tertiary or early Quaternary and is currently advancing northward due to collisions with South America to the east and the indenting Cocos Ridge on the Cocos plate to the south. -from Authors

Original languageEnglish (US)
Pages (from-to)263-266
Number of pages4
JournalGeology
Volume22
Issue number3
DOIs
StatePublished - Jan 1 1994

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microplate
kinematics
Cocos plate
Caribbean plate
transtension
transpression
tectonic evolution
terrace
island arc
trench
asymmetry
collision
coast
basin

All Science Journal Classification (ASJC) codes

  • Geology

Cite this

Fisher, Donald Myron ; Gardner, T. W. ; Marshall, J. S. ; Montero P., W. / Kinematics associated with late Cenozoic deformation in central Costa Rica : western boundary of the Panama microplate. In: Geology. 1994 ; Vol. 22, No. 3. pp. 263-266.
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abstract = "The paper presents kinematic data for late Cenozoic deformation in central Costa Rica that marks the western margin of the Panama microplate (ie the Caribbean-Panama boundary). Terrace correlation and basin asymmetry indicate a major change in tectonic evolution across the boundary, where three regional northeast-striking faults intersect the Pacific coast. Mesoscopic fault populations are consistent with transtension across these north-east-striking faults and with transpression within the east-trending Valle Central. This late Tertiary and Quaternary transcurrent deformation links the North Panama deformed belt to the east with the Middle America Trench to the west. This deformation marks the western extent of the Panama microplate, a fragment of volcanic arc that separated from the Caribbean plate in the late Tertiary or early Quaternary and is currently advancing northward due to collisions with South America to the east and the indenting Cocos Ridge on the Cocos plate to the south. -from Authors",
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Kinematics associated with late Cenozoic deformation in central Costa Rica : western boundary of the Panama microplate. / Fisher, Donald Myron; Gardner, T. W.; Marshall, J. S.; Montero P., W.

In: Geology, Vol. 22, No. 3, 01.01.1994, p. 263-266.

Research output: Contribution to journalArticle

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