TY - JOUR
T1 - Preliminary petrology of diabases from Sites 469 and 471, Deep Sea Drilling Project Leg 63.
AU - Shibata, T.
AU - Delong, S. E.
PY - 1981
Y1 - 1981
N2 - Diabasic rocks were recovered at Sites 469 and 471 on IPOD/DSDP Leg 63. The diabasic rocks are composed mainly of plagioclase, clinopyroxene, and low-temperature alteration products. In addition to these phases, a considerable amount of primary biotite and lesser colorless amphibole are observed in some of the Site 471 diabases. Major and trace element data suggest that these rocks are tholeiitic; however, their highly altered nature obscures their petrologic affinity with the DSDP Leg 63 tholeiitic basalts and others from the nearby Pacific ocean floor. It is likely that the Site 469 and 471 diabasic rocks represent products of off-ridge intrusive activity.-Authors
AB - Diabasic rocks were recovered at Sites 469 and 471 on IPOD/DSDP Leg 63. The diabasic rocks are composed mainly of plagioclase, clinopyroxene, and low-temperature alteration products. In addition to these phases, a considerable amount of primary biotite and lesser colorless amphibole are observed in some of the Site 471 diabases. Major and trace element data suggest that these rocks are tholeiitic; however, their highly altered nature obscures their petrologic affinity with the DSDP Leg 63 tholeiitic basalts and others from the nearby Pacific ocean floor. It is likely that the Site 469 and 471 diabasic rocks represent products of off-ridge intrusive activity.-Authors
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U2 - 10.2973/dsdp.proc.63.126.1981
DO - 10.2973/dsdp.proc.63.126.1981
M3 - Article
AN - SCOPUS:0019682516
SP - 701
EP - 709
JO - [No source information available]
JF - [No source information available]
SN - 0402-1215
ER -