A study led by Drs. Xun Wei and Xue-Fa Shi from the First Institute of Oceanography, Ministry of Natural Resources, China presents 40 Ar-39 Ar age, geochemical, and Sr-Nd-Pb-Hf isotopic data of lavas ...
A new interpretation of petrogenesis of the early continental crust rock (trondhjemite) in the earth
The ancient continental crust in the earth was mainly formed in the Archean, 2.5~4.0 billion years ago, and is chiefly composed of tonalite, trondhjemite and granodiorite (TTG rocks). These three ...
(a) Ages of Hemler, Vlinder, Pako, Ioah, and Il’ichev seamount lavas in the Magellan seamount area and the predicted ages of the Ratotonga (white dashed outline) and Samoa (yellow solid outline) ...
Object Details Author Hibbard, M. J (Malcolm J.) 1995 C1995 Type Books Physical description xv, 587 p. : ill. (some col.) ; 29 cm Smithsonian Libraries Topic Petrology Petrogenesis Record ID siris_sil ...
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