Zobrazeno 1 - 10
of 57
pro vyhledávání: '"B.A. Litvinovsky"'
Publikováno v:
Precambrian Research. 320:137-170
The Elat Metamorphic Complex (EMC), part of the Arabian-Nubian Shield exposed at Elat and Taba areas (S. Israel and NE Sinai, Egypt), records a full orogenic cycle from island arc to syncollisional stages that extended ∼240 My. New SIMS U–Pb dati
Autor:
N.S. Karmanov, Bor-ming Jahn, B.A. Litvinovsky, S.V. Kanakin, A.N. Zanvilevich, Ye. Vapnik, S.M. Wickham
Publikováno v:
Journal of Asian Earth Sciences. 136:16-39
In the study area of 60 by 15 km, located south of Lake Baikal, coeval mafic rocks form small intrusive bodies, synplutonic dikes and composite mafic-felsic dikes in four successive Late Paleozoic and Early Mesozoic syenite and granite suites. Mafic
Publikováno v:
Lithos. :106049
Continental-scaled magmatic activity occurs after the end of collision-orogenic stages of the Wilson cycle. This post-collisional magmatism is widely exhibited, from 635 to 540 Ma, in a series of large Neoproterozoic (Pan-African) orogenic belts thro
Publikováno v:
Lithos. 232:242-265
Granite is generally dominant in A-type igneous suites but these frequently include also alkali feldspar- and peralkaline- syenite and quartz syenite. Such syenites can provide essential information about magma sources and mode of generation of A-typ
Publikováno v:
American Journal of Science. 314:462-507
Publikováno v:
Gondwana Research. 25:338-357
Four isolated metamorphic complexes located within post-collisional granitoids occupying up to 70% of the total area, were distinguished in Sinai (Egypt) and Elat area (southern Israel), the northernmost part of the Arabian–Nubian Shield. The metam
Publikováno v:
Geology. 40:403-406
New zircon U-Pb age data and geochemistry for the Sa9al metamorphic complex (SMC) in Sinai (Egypt) provide the first robust evidence of latest Mesoproterozoic island arc rocks at the northernmost Arabian-Nubian Shield, possibly indicating that format
Publikováno v:
Lithos. 125:845-874
The Late Palaeozoic voluminous magmatism in Transbaikalia, Russia (a territory of > 600,000 km 2 to the east of Lake Baikal) is highly diverse and complex. Of special interest are (1) the significant overlap in time between magmatic suites commonly a
Autor:
Bor-ming Jahn, B.A. Litvinovsky, D.Y. Liu, S.L. Presnyakov, Marc K. Reichow, A.A. Tsygankov, Sergey Sergeev, Ye.N. Lepekhina, A.N. Larionov
Publikováno v:
Russian Geology and Geophysics. 51:972-994
The Late Paleozoic intrusive rocks, mostly granitoids, totally occupy more than 200,000 km2 on the territory of Transbaikalia. Isotopic U-Pb zircon dating (about 30 samples from the most typical plutons) shows that the Late Paleozoic magmatic cycle l
Publikováno v:
Chemical Geology. 273:120-135
The Mongolian–Transbaikalian Belt (MTB) is the largest and most representative component of the Central-Asian network of Late Paleozoic and Mesozoic granites and syenites and associated volcanic rocks. The MTB incorporates over 350 individual pluto