Field Evidence to Distinguish Over-Thrusting from Underthrusting

Autor:	T. S. Lovering
Rok vydání:	1932
Předmět:	geography geography.geographical_feature_category Fold and thrust belt Geology Thrust Thrust fault Fold (geology) Seismology
Zdroj:	The Journal of Geology. 40:651-663
ISSN:	1537-5269 0022-1376
DOI:	10.1086/623986
Popis:	If a thrust fault breaks from an overturned fold in a zone of tear faulting, the movement of the walls of the tear faults shows the direction of movement of the adjacent thrust block and thus indicates whether underthrusting or overthrusting has taken place. Similarly, a marked swing of formations toward or away from the axis of the overturned fold as a thrust fault is approached suggests underthrusting or overthrusting, respectively. Application of these criteria to the Seminoe Mountain thrust fault and to the Williams Range thrust fault indicates that the first is an overthrust and that the second is an underthrust.
Databáze:	OpenAIRE
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