Carbonate alteration of ophiolitic rocks in the Arabian–Nubian Shield of Egypt: sources and compositions of the carbonating fluid and implications for the formation of Au deposits [PDF]
, 2016 Ultramafic portions of ophiolitic fragments in the Arabian–Nubian Shield (ANS) show pervasive carbonate alteration forming various degrees of carbonated serpentinites and listvenitic rocks.
Azer, Mokhles K. +9 more
core +2 more sources
Геодинамика и тектонофизика, 2018 The TerraneChrone® (LA-ICP-MS) technique has been applied to carry out an integrated study of detrital zircons in sandstones sampled from the basal horizons of the stratotypical Riphean sequence in the Southern Urals, specifically the Navysh and Chudin ...
T. V. Romanyuk +4 more
doaj +1 more source
Melting of carbonated pelites at 8-13GPa: generating K-rich carbonatites for mantle metasomatism [PDF]
, 2018 The melting behaviour of three carbonated pelites containing 0-1wt% water was studied at 8 and 13GPa, 900-1,850°C to define conditions of melting, melt compositions and melting reactions.
Grassi, Daniele, Schmidt, Max
core
CRUSTAL CARBONATITES: DEFINITION, GEOLOGY, MINERALOGY, AND GEOCHEMISTRY
Геодинамика и тектонофизикаThis is a synopsis of the available data on crustal carbonatites, including their temporal and spatial distribution, mineralogy, geochemistry, and stable isotope (δ18O and δ13C) patterns.
E. V. Sklyarov, A. V. Lavrenchuk
doaj +1 more source
To the problem of origin of the Bug series rocks
Геофизический журнал, 2019 The age of the Bug series rocks is an object for discussion. Isotopic methods do not give a distinct answer, because in the same outcrop, the same sample and even in the same crystal of zircon several dates of formation are to be found with evident ...
O. V. Usenko
doaj +1 more source
Evolution of pyrochlore in carbonatites: the Angola case [PDF]
, 2008 Peer ReviewedPostprint (published ...
Alfonso Abella, María Pura +6 more
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Styles of Alteration of Ti Oxides of the Kimberlite Groundmass: Implications on the Petrogenesis and Classification of Kimberlites and Similar Rocks [PDF]
, 2018 The sequence of replacement in groundmass perovskite and spinel from SK-1 and SK-2 kimberlites (Eastern Dharwar craton, India) has been established. Two types of perovskite occur in the studied Indian kimberlites.
Castillo Oliver, Montgarri +2 more
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Problems of search and diagnosis of carbonatites on the territory of Ukraine
Вісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. ЕкологіяReliably established carbonatites on the territory of Ukraine have characteristics inherent in this class of rocks, in particular, they are enriched with a fairly wide range of rare chemical elements, the most characteristic are rare earth elements and ...
Василь Загнітко
doaj +1 more source
Late Triassic Hydroclimatic Changes in Central China Linked to Evolving Mountain Topography
Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.Abstract During the Late Triassic, tropical Pangea drifted northward into subtropical latitudes and became progressively drier. In contrast, South China, despite experiencing a similar latitudinal shift, transitioned from an arid to humid climate. Based on the sedimentary record of the Zigui Basin, this study constrains the arid to humid climatic shift
Rong Chai +7 more
wiley +1 more source
On the Feasibility of Imaging Carbonatite-Hosted Rare Earth Element Deposits Using Remote Sensing [PDF]
Rare earth elements (REEs) generate characteristic absorption features in visible to shortwave infrared (VNIR-SWIR) reflectance spectra. Neodymium (Nd) has among the most prominent absorption features of the REEs and thus represents a key pathfinder ...
Black, Martin +6 more
core +1 more source