학술논문

Recurrent intraplate tectonism in the New Madrid seismic zone
Document Type
Journal Article
Author
Source
Science; (United States); 209:No. 4460
Subject
58 GEOSCIENCES MIDWEST REGION
RISK ASSESSMENT
SEISMICITY
EARTHQUAKES
GEOLOGIC FAULTS
INTRUSION
PLUTONIC ROCKS
RIFT ZONES
TECTONICS
GEOLOGIC STRUCTURES
IGNEOUS ROCKS
NORTH AMERICA
ROCKS
SEISMIC EVENTS
USA 580201* -- Geophysics-- Seismology & Tectonics-- (1980-1989)
Language
English
Abstract
For the first time, New Madrid seismicity can be linked to specific structural features that have been reactivated through geologic time. Extensive seismic reflection profiling reveals major faults coincident with the main earthquake trends in the area and with structural deformation apparently caused by repeated episodes of igneous activity.