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The AAPG/Datapages Combined Publications Database

Journal of Sedimentary Research (SEPM)

Abstract


Journal of Sedimentary Petrology
Vol. 46 (1976)No. 3. (September), Pages 555-562

Spatial and Temporal Relationships of Intrusive Limestones from Las Palmas, Canary Islands

Brian A. Sturt, Harald Furnes

ABSTRACT

Clastic intrusions of biogenic calcarenite occur as simple or branching dykes, sheets, sills, and as net-vein complexes. They are mainly intruded from below into volcaniclastic sediments and the lower part of a thick basanite lava flow. Where they penetrate the lava they are metamorphosed. The source of the limestone intrusions lies in shell sand layers which became mobilized as a slurry along joints. It is believed that rapid loading by the basanite flow was responsible for the upward injection.


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