کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4722365 1639600 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Anomalous supply of bioessential molybdenum in mid-Proterozoic surface environments
ترجمه فارسی عنوان
تامین غیرعادی مولیبدن زیستی ضروری در محیط های سطحی پروتروزیو
کلمات کلیدی
مولیبدن؛ مولیبدنیت؛ پروستروئوزوئیک؛ منشأ؛ سیر تکاملی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات ژئوشیمی و پترولوژی
چکیده انگلیسی


• We review widespread global occurrences of molybdenite in mid-Proterozoic granites.
• Mesoproterozoic sandstone provenance is dominated by mid-Proterozoic, and possibly Archean, sources.
• We conclude molybdenum availability to the Mesoproterozoic surface was high.
• Molybdenum needed for spread of multicellular life at this time was readily available.

Granites aged 1.9 Ga to 1.5 Ga exhibit molybdenite mineralization globally. Sandstones deposited during the mid-Proterozoic have a provenance dominated by 1.9–1.7 Ga basement. The mid-Proterozoic surface environment was, consequently, receiving detritus from the molybdenum-rich granites. Thus there was a supply of molybdenum available in terrestrial or shallow marine environments at a time when molybdenum was required to support the evolution of multicellular life.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Precambrian Research - Volume 275, April 2016, Pages 100–104
نویسندگان
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