Research output: Contribution to journal › Article › peer-review
Late Neoproterozoic adakites of the Yenisei Ridge (Central Siberia) : petrogenesis, geodynamics, and U/Pb age. / Vernikovskaya, A. E.; Vernikovsky, V. A.; Matushkin, N. Yu et al.
In: Russian Geology and Geophysics, Vol. 58, No. 10, 01.10.2017, p. 1154-1170.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Late Neoproterozoic adakites of the Yenisei Ridge (Central Siberia)
T2 - petrogenesis, geodynamics, and U/Pb age
AU - Vernikovskaya, A. E.
AU - Vernikovsky, V. A.
AU - Matushkin, N. Yu
AU - Kadil'nikov, P. I.
AU - Romanova, I. V.
AU - Larionov, A. N.
PY - 2017/10/1
Y1 - 2017/10/1
N2 - Based on new geological, structural, mineralogical, geochemical, and isotope (Sm-Nd, Rb-Sr, and U-Th-Pb) data for igneous intrusions and metamorphic rocks of the Zimoveinyi massif, an adakite-gabbroid association was identified for the first time in the Yenisei Ridge (southwestern framing of the Siberian craton). This study demonstrates that the adakites (quartz diorites, tonalites, and plagiogranites) and associating gabbro-anorthosites of this massif formed in the interval 576-546 Ma (U-Th-Pb zircon SHRIMP-II analysis) at the final Neoproterozoic evolution stage of the active continental margin of the Siberian craton. Our results point to a genetic relationship between the adakites and the host Nb-enriched metabasites of the Zimoveinyi massif. The studied late Neoproterozoic adakites might have formed in the setting of transform strike-slip of lithospheric plates during a halt in subduction from both crustal and mantle-crustal source, similarly to Cenozoic igneous complexes of the transform margin in the eastern framing of Eurasia.
AB - Based on new geological, structural, mineralogical, geochemical, and isotope (Sm-Nd, Rb-Sr, and U-Th-Pb) data for igneous intrusions and metamorphic rocks of the Zimoveinyi massif, an adakite-gabbroid association was identified for the first time in the Yenisei Ridge (southwestern framing of the Siberian craton). This study demonstrates that the adakites (quartz diorites, tonalites, and plagiogranites) and associating gabbro-anorthosites of this massif formed in the interval 576-546 Ma (U-Th-Pb zircon SHRIMP-II analysis) at the final Neoproterozoic evolution stage of the active continental margin of the Siberian craton. Our results point to a genetic relationship between the adakites and the host Nb-enriched metabasites of the Zimoveinyi massif. The studied late Neoproterozoic adakites might have formed in the setting of transform strike-slip of lithospheric plates during a halt in subduction from both crustal and mantle-crustal source, similarly to Cenozoic igneous complexes of the transform margin in the eastern framing of Eurasia.
KW - active and transform continental margin
KW - adakites
KW - gabbro-anorthosites
KW - late Neoproterozoic
KW - Nb-enriched metabasites
KW - Rb-Sr isotope data
KW - Siberian craton
KW - Sm-Nd
KW - U-Th-Pb
KW - Yenisei Ridge
KW - NB-ENRICHED BASALTS
KW - EVENTS
KW - ALKALINE MAGMATISM
KW - SUBDUCTION
KW - WESTERN MARGIN
KW - NOMENCLATURE
KW - EVOLUTION
KW - CRATON
KW - GEOCHEMISTRY
KW - PALEOMAGNETIC DATA
UR - http://www.scopus.com/inward/record.url?scp=85058845564&partnerID=8YFLogxK
U2 - 10.1016/j.rgg.2016.12.008
DO - 10.1016/j.rgg.2016.12.008
M3 - Article
AN - SCOPUS:85058845564
VL - 58
SP - 1154
EP - 1170
JO - Russian Geology and Geophysics
JF - Russian Geology and Geophysics
SN - 1068-7971
IS - 10
ER -
ID: 18292261