Results 21 to 30 of about 3,591 (216)

Palaeomagnetism of the Bayan Gol formation, western Mongolia [PDF]

, 1996
Oriented samples of the Lower Cambrian Bayan Gol Formation from Salaany Gol, Mongolia, were collected at roughly 5 m stratigraphic intervals for palaeomagnetic analysis.
Budney, C. J., Evans, D. A., Kirschvink, J. L., Zhuravlev, A. Yu   +3 more
core   +1 more source

Enlargement of the area of the Timpton Large Igneous Province (ca. 1.75 ga) of the Siberian craton

Геодинамика и тектонофизика, 2019
We present new geochronological data on dolerites from the Chaya dyke swarm of the Baikal inlier of the Siberian craton. The U‐Pb dating of baddeleyite from one dyke located at the SW end of the Chaya dyke swarm yielded an age of 1752±6 Ma, similar to ...
D. P. Gladkochub, T. V. Donskaya, R. E. Ernst, U. Söderlund, A. M. Mazukabzov, M. N. Shokhonova   +5 more
doaj   +1 more source

Thermobarometry of Diamond Inclusions: Evidence Mantle Evolution beneath Siberian Craton and Archean Cratons Worldwide.

, 2021
Thermobarometric calculations for mineral inclusions in diamonds provide a systematic comparison of PTXFO2 conditions for different cratons worldwide, using a database of 4440 mineral EPMA analyses. Beneath all cratons, the cold branch of the mantle geotherm (35-32 mWm−2) relates to the sub-Ca garnets and rarely omphacitic diamond inclusions,
Igor Ashchepkov, Alla Logvinova, Zdislav Spetsius, Hilary Downes   +3 more
openaire   +2 more sources

LYSAN ALKALINE-ULTRABASIC COMPLEX (EASTERN SAYAN): AGE AND GEODYNAMIC CONSEQUENCES

Геодинамика и тектонофизика, 2022
This paper presents new ideas about the formational identity, as well as the first data on the age of formation of rocks within the Lysan intrusive complex located at junction of the Derbin block and the Sisim-Kazyr zone of the Central Asian folded belt.
A. S. Mekhonoshin, T. B. Kolotilina, A. V. Travin   +2 more
doaj   +1 more source

Chemostratigraphy of Neoproterozoic carbonates: implications for 'blind dating' [PDF]

, 2001
The delta C-13(carb) and Sr-87/Sr-86 secular variations in Neoproteozoic seawater have been used for the purpose of 'isotope stratigraphy' but there are a number of problems that can preclude its routine use.
Aharon P., Anthony E. Fallick, Anton B. Kuznetsov, Bowring S.A., Brand U., Brasier M.D., Brasier M.D., Brasier M.D., Burns S.J., Calver C.R., Corsetti F.A., Fairchild I.J., Fairchild I.J., Gao G., Gorokhov I.M., Gorokhov I.M., Gorokhov I.M., Grotzinger J.P., Grotzinger J.P., Hoffman P.F., Igor M. Gorokhov, Kaufman A.J., Kennedy M.J., Kirschvink J.L., Knoll A.H., Knoll A.H., Knoll A.H., Kupecz J.A., Kuznetsov A.B., Kuznetsov A.B., Lambert I.B., Magaritz M., McArthur J.M., McArthur J.M., McCulloch M.T., Melezhik V.A., Morton J.P., Ovchinnikova G.V., Pelechaty S.M., Podkovyrov V.N., Pokrovsky B.G., Pokrovsky B.G., Pokrovsky B.G., Saylor B.Z., Semikhatov M.A., Singh U., Smith L.H., Tronnes R.G., Tucker M.E., Tucker M.E., Veizer J., Veizer J., Victor A. Melezhik, Wada S.-I., Walter M.R., Wang Da-Rui   +55 more
core   +1 more source

Siberian craton - a fragment of a Paleoproterozoic supercontinent [PDF]

Russian Journal of Earth Sciences, 2002
The sialic (volcanogenic) material of the terranes in 3the Siberian fragment of a Paleoproterozoic supercontinent separated from the mantle 3.5, 3.3, 3.0, and 2.5 billion years ago. The collision zones (sutures) between the terranes are dated by granitoids which melted from the crust of the terranes in two periods of time: 1.9 and 1.8 billion years ago.
openaire   +1 more source

Seismic anisotropy of Precambrian lithosphere : Insights from Rayleigh wave tomography of the eastern Superior Craton [PDF]

, 2017
The seismic data used in this study are freely available from the CNDC (Canadian National Data Centre for Earthquake Seismology and Nuclear Explosion Monitoring) and IRIS DMC (Data Management Center) via their data request tools.
Lee S., Nolet G., Sato Y., Snieder R., Vinnik L., Wardle R. J.   +5 more
core   +2 more sources

Circum-Arctic lithosphere-basin evolution : An overview [PDF]

, 2016
Acknowledgements The Special Issue editors thank the contributors for their hard work and dedication in the preparation of the papers presented here, and also Victoria Pease for her active support throughout the process and in particular in co-convening ...
Lane, Larry S., Stephenson, Randell A.
core   +1 more source

Precambrian diamond crystals from the Siberian craton

Доклады Академии наук, 2019
Analysis of diamond grains from placers in the northeastern Siberian craton shows that some diamond varieties (round dodecahedra, varieties II and V-VII in the classification of Orlov) may originate from Precambrian sources. The Precambrian diamonds have different sedimentation histories.
V. P. Afanasiev, N. P. Pokhilenko, E. O. Egorova, E. S. Leendenblot   +3 more
openaire   +2 more sources

Mesozoic–Tertiary exhumation history of the Altai Mountains, northern Xinjiang, China: New constraints from apatite fission track data [PDF]

, 2005
This study uses apatite fission track (FT) analysis to constrain the exhumation history of bedrock samples collected from the Altai Mountains in northern Xinjiang, China.
Allen, Allen, Andy Carter, Bai, Bai, Bullen, Carlson, Cunningham, DeGrave, Dobretsov, Donelick, Dong, Galbraith, Galbraith, He, Hendrix, Howard, Hurford, Hurford, Jinquan Dong, Jolivet, Ketcham, Ketcham, Li, Sjorstrom, Sobel, Vincent, Wang, Wang, Wang, Wang, Wanming Yuan, Yinchang An, Zanchi, Zari, Zengkuan Bao, Zhang, Zhaojie Guo   +37 more
core   +1 more source