Email this article Geodynamic formation conditions of Early Cambrian lavas in the Ozernaya zone of Mongolia
- Authors: Kovalenko D.V.1, Mongush A.A.2, Sath H.N.2
-
Affiliations:
- Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry (IGEM)
- Tuva Institute of Complex Development of Mineral Resources, Siberian Branch
- Issue: Vol 469, No 2 (2016)
- Pages: 791-796
- Section: Geology
- URL: https://journals.rcsi.science/1028-334X/article/view/188704
- DOI: https://doi.org/10.1134/S1028334X16080122
- ID: 188704
Cite item
Open Access
Access granted
Subscription Access
Abstract
Four types of pre-accretionary Early Cambrian lava sequences are distinguishable in the geological structure of the Ozernaya zone in western Mongolia: (I) close to N-MORB; (II) close to E-MORB; (III) enriched with trace elements and with HFSE minimums; (IV) depleted in trace elements and with HFSE minimums. All these lavas could have been formed in an island-arc‒back-arc basin system. N-MORB basalts were melted from depleted magma sources with с εNd(t) = 10.0–11.5. Plume melts originated from mantle sources with εNd(t) = 4.8–9.7. The sources of island arc lavas were characterized by εNd(t) = 7.3–9.9.
About the authors
D. V. Kovalenko
Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry (IGEM)
Author for correspondence.
Email: Dmitry@igem.ru
Russian Federation, Staromonetnyi per. 35, Moscow, 119017
A. A. Mongush
Tuva Institute of Complex Development of Mineral Resources, Siberian Branch
Email: Dmitry@igem.ru
Russian Federation, Tuva
H. N. Sath
Tuva Institute of Complex Development of Mineral Resources, Siberian Branch
Email: Dmitry@igem.ru
Russian Federation, Tuva
Supplementary files
