Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Some Aspects of the Geology and Geochemistry of Vengad Conglomerate, Cannanore District, North Kerala


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1 Centre for Earth Science Studies, PB 2235, Trivandrum 695010, India
     

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A conglomerate horizon separates the Early Precambrian high-grade supracrustals from the low-grade supracrustal rocks in north Kerala. The conglomerate consists dominantly of quartzite pebbles. In addition quartz. granite and quartz-mica schist pebbles are also recognised. Tbe matrix is of arkosic composition. The petrochemistry of pebbles and matrix indicate a dominant sialic provenance. The presence of quartzite pebbles suggests a cycle of sedimentation prior to the deposition of Vengad conglomerates.
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  • Some Aspects of the Geology and Geochemistry of Vengad Conglomerate, Cannanore District, North Kerala

Abstract Views: 172  |  PDF Views: 2

Authors

G. R. Ravindra Kumar
Centre for Earth Science Studies, PB 2235, Trivandrum 695010, India
Narayanaswamy
Centre for Earth Science Studies, PB 2235, Trivandrum 695010, India

Abstract


A conglomerate horizon separates the Early Precambrian high-grade supracrustals from the low-grade supracrustal rocks in north Kerala. The conglomerate consists dominantly of quartzite pebbles. In addition quartz. granite and quartz-mica schist pebbles are also recognised. Tbe matrix is of arkosic composition. The petrochemistry of pebbles and matrix indicate a dominant sialic provenance. The presence of quartzite pebbles suggests a cycle of sedimentation prior to the deposition of Vengad conglomerates.