Results 71 to 80 of about 146,299 (379)
The mineralogy, petrology, and composition of anomalous eucrite Emmaville [PDF]
, 2017 The Emmaville eucrite is a relatively poorly studied basaltic achondrite with an anomalous oxygen isotope signature. In this study, we report comprehensive mineralogical, petrographic, and geochemical data from Emmaville in order to understand its ...
Barrat +47 more
core +1 more source
The Depositional Record, EarlyView.The article demonstrates that brine was central for the supply of Ca and B to the studied saline lake. The ion transport occurred probably by thermal springs, while contributions from surface waters cannot be excluded. However, the saturation and syndepositional precipitation of Ca borates were initiated by an arid climate through evaporation, while ...
Nevena Andrić‐Tomašević +8 more
wiley +1 more source
Petrology and geochemistry of the NWA 3368 Eucrite [PDF]
, 2006 We report the petrology and geochemistry of NWA 3368, a new non-cumulate, monomict eucrite breccia with a variety of clast sizes and a pink-tinted matrix.
Domanik, K.J. +6 more
core +1 more source
Evidence for a reducing Archean ambient mantle and its effects on the carbon cycle [PDF]
, 2016 Chemical reduction-oxidation mechanisms within mantle rocks link to the terrestrial carbon cycle by influencing the depth at which magmas can form, their composition, and ultimately the chemistry of gases released into the atmosphere.
Aulbach, Sonja, Stagno, Vincenzo
core +1 more source
The Depositional Record, EarlyView.Halite thickness in Mbr 2 of the Kumugeliemu can reach 1000 m. The thick halite is associated with sedimentary rock with shallow water fabrics. The thick halite was formed in a shallow‐sea water environment. The ‘Multiple transgression‐salt‐forming’ model was established.
Peng Qin, Dakang Zhong, Zhonggui Hu
wiley +1 more source
, 2015 This study presents recently collected data examining the organic petrology, palynology, mineralogy and geochemistry of the Gray Hawk coal bed. From the Early Pennsylvanian, Langsettian substage, Gray Hawk coal has been mined near the western edge of the
J. Hower +8 more
semanticscholar +1 more source
Geologic structure and composition of Munilkan massif Verkhoyansk-Kolyma orogenic area
Литосфера, 2015 This article presents the results of detailed study of geologic structure and composition of Munilkan massif of the Main batholith belt of Verkhoyansk-Kolyma mesozoides (Tas-Khayakhtakh Ridge).
V. A. Trunilina +2 more
doaj +2 more sources
Petrology in Perspective [PDF]
Nature, 1955 A Historical Survey of Petrology By Prof. F. Y. Loewinson-Lessing. (Translated from the Russian by Dr. S. I. Tomkeieff.) Pp. x + 112. (Edinburgh and London: Oliver and Boyd, Ltd., 1954.) 12s. 6d. net.
openaire +2 more sources
The Depositional Record, EarlyView.The Bisperode section is one of the most expanded and complete sections with shallow‐marine Oxfordian strata in the LSB. This study provides a reference record for shallow‐marine settings and allows for the correlation of the strata from the LSB with Oxfordian deposits distributed elsewhere in the world.
Deyan Zhang +3 more
wiley +1 more source
Absolute age, petrology, geochemistry and ore mineralization of Tochilny stock in Gorny Altai
Известия Томского политехнического университета: Инжиниринг георесурсов, 2017 The relevance of the discussed issue is caused by the need of researching absolute age, petrology, geochemistry and ore mineralization of Tochilny stock which is represented by strong fractionated rocks from melanosienite to leucogranite. Different types
Anatoliy Ivanovich Gusev +2 more
doaj