作者: Kuo‐Lung Wang , Vladimir Prikhodko , Suzanne Y O'Reilly , William L Griffin , Norman J Pearson
DOI: 10.1111/TER.12157
关键词: Crust 、 Basalt 、 Late Miocene 、 Earth science 、 Volcano 、 Massif 、 Geology 、 Mantle (geology) 、 Craton 、 Lithosphere 、 Geochemistry
摘要: The Os-isotope compositions of sulphides in mantle xenoliths hosted by Late Miocene alkali basalts from the Sviyaginsky volcano, Russian Far East, reveal presence Archaean–Proterozoic subcontinental lithospheric beneath Khanka massif. Their TMA and TRD model ages similar peaks at 1.1 0.8 Ga suggesting later thermotectonic events mantle, whereas range back to 2.8 ± 0.5 (2σ) Ga. recognized are consistent with those recorded crust sulphide data show that massif had formed least Mesoproterozoic, was subsequently metasomatized juvenile crustal-growth related evolution Altaids. is further proposed have tectonic affinity Siberia Craton should originate it accordingly.