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compute the cr (%) and rqd (%). Assume that the mechanical break is confined to having been caused by the drilling procedure. explain your answer

compute the cr (%) and rqd (%). Assume that the mechanical break is confined to having been caused by the drilling procedure. explain your answer

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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compute the cr (%) and rqd (%). Assume that the mechanical break is confined to having been caused by the drilling procedure. explain your answer

highly weathered, not sound centreline pieces <100mm mechanical break caused by drilling no recovery L = 250mm L=0 (160mm in UK) L=0 L = 190mm L = 0 (<100mm) L = 200mm L=0 Total core run 1.22m
Transcribed Image Text:highly weathered, not sound centreline pieces <100mm mechanical break caused by drilling no recovery L = 250mm L=0 (160mm in UK) L=0 L = 190mm L = 0 (<100mm) L = 200mm L=0 Total core run 1.22m
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