نتایج جستجو برای: source rock geochemistry

تعداد نتایج: 459759  

2015
Antonio García-Moyano Andreas Erling Austnes Anders Lanzén Elena González-Toril Ángeles Aguilera Lise Øvreås

Svalbard, situated in the high Arctic, is an important past and present coal mining area. Dozens of abandoned waste rock piles can be found in the proximity of Longyearbyen. This environment offers a unique opportunity for studying the biological control over the weathering of sulphide rocks at low temperatures. Although the extension and impact of acid mine drainage (AMD) in this area is known...

Journal: :Journal of South American Earth Sciences 2021

New isotopic and geochemical data for the Paleo- Meso- Neoproterozoic metasedimentary cover of southern Dom Feliciano Belt (Brasiliano/Pan-African) are presented evaluated combined with published information. Whole-rock major trace element geochemistry indicates that dominant source all units had a composition similar to average upper continental crust. The is even late Ediacaran successions co...

Journal: :Remote Sensing 2022

The integration of imaging spectroscopy and aeromagnetics provides a cost-effective promising way to extend the initial analysis mineral deposit. While retrieves surface spectral information, magnetic responses are used determine magnetization at both shallower greater depths using 2D 3D modeling. Integration magnetics improves upon knowledge concerning lithology with properties, enhances under...

2009
H. Y. McSween G. J. Taylor

Introduction: The compositions of Martian (SNC) meteorites provide geochemical parameters thought to be diagnostic for Mars [1,2]. The validity of these geochemical fingerprints is important because SNC element ratios are the basis for estimates of the planet’s bulk composition [3]. The compositions of minerals in these meteorites are distinct from terrestrial rocks and are also hypothesized to...

In the this research, the hydrocarbon generation potential of the Gadvan Formation as a probable source rock was investigated in the central part of the Persian Gulf at the borders of Iran. Type and maturity level of kerogen were investigated in six wells using the results of Rock-Eval pyrolysis and compared with results yielded by the modelling software program known as Pars Basin Modeler (PBM...

2006
T. Bose H. E. Newsom D. Sengupta

Introduction: The young Lonar crater, Maharashtra, India [1-3], is a bowl-shaped, almost circular, simple impact crater [4] of relatively small diameter ~1.8 km [5]. The uniqueness of this crater is that it is one of two known terrestrial impact craters excavated on basaltic target rock. The target-rock of this crater is the sub-horizontal Deccan basalt flows (~67 M.y.) [6]. All around the circ...

2006
CRAIG E. MANNING STEPHEN J. MOJZSIS T. MARK HARRISON

New mapping, geochronology, and geochemistry of the supracrustal enclave and associated orthogneisses at Akilia, West Greenland, support a >3825 6 Ma age for the sequence and a chemical sedimentary origin for the controversial Fe-rich quartz-pyroxene gneisses. Lithologies of the enclave comprise laterally continuous, mappable units of mafic amphibolite, ultramafic rocks, and two Fe-rich quartzp...

Journal: :Journal of Geophysical Research: Solid Earth 2016

Abdulwahab S. Alaug Khaled A. Al-Wosabi

Organic geochemical evaluation of the Madbi Formation as the main source rock of the Al-Jawf Basin, NE Central Yemen was the main objective of this study. The organic geochemical methods used in the study include: rock-eval pyrolysis, total organic carbon, and optical measurements as the vitrinite reflectance and thermal alteration index. In this study, 67 well core and side-well core samples o...

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