نتایج جستجو برای: sedimentary petrology

تعداد نتایج: 12279  

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2013
K A Silva J M F F Santos D M Santos E M N Ferraz E L Araújo

In the arid and semiarid environments of the world, microhabitats serve as models for the structure of vegetation communities. The goal of this study was to identify differences in the structures of the herbaceous communities growing on a crystalline substrate and those growing on a sedimentary substrate in a semiarid region of northeastern Brazil. One hundred 1 × 1 m plots were established in ...

2011
Maxwell T. Hincke Yves Nys Joel Gautron Karlheinz Mann Alejandro B. Rodriguez-Navarro Marc D. McKee

Department of Cellular & Molecular Medicine, University of Ottawa, 451 Smyth Road, Ottawa, K1H 8M5, Canada, 2 INRA, Institut National de la Recherche Agronomique, UR83 Recherches Avicoles, F-37380, Nouzilly, France, 3 Max-Planck-Institut für Biochemie, Abteilung Proteomics und Signaltransduktion, Am Klopferspitz 18, D-82152 Martinsried, Germany, 4 Minerology and Petrology, University of Granada...

Journal: :Minerals 2023

This Special Issue of Minerals, section Mineral Deposits, on the topic “Petrology and Mineralogy Pegmatite Deposits”, was inspired by currently growing scientific economic interest in pegmatites [...]

Journal: :Magyar tudomány 2022

Szabó József (1822–1894) emlékére. A szaknyelvújító és a magyar kőzettan megalapítója • In Memory of (1822–1894). The Reformer Technical Terminology and the Founder Hungarian Petrology

2013
Xinhu Li Yuan Guo

The method of sedimentary cycle division is studied based on comprehensive research and activity analysis of well logging, combined with wavelet analysis and characteristics of stratigraphic cycle. Based on the method above, this paper divided stratigraphic cycles and finely classified the tratifigraphic by taking H1518 in HSS oilfield as an example. The result shows that sedimentary cycle can ...

2015
Shigekazu Kusumoto Yasuto Itoh Keiji Takemura Tomotaka Iwata

In the two-dimensional discrete element modeling of displacement of sedimentary layers caused by faulting within the basement, we attempted to move a rigid basement as if it were an elastic basement by controlling its motion through application of dislocation solutions. An advantage of our modeling procedure is that we can discuss displacement fields of sedimentary layers in connection with fau...

2009
C. Caillet Komorowski O. Boudouma A. El Goresy M. Miyahara

OPAQUE ASSEMBLAGES IN UNSHOCKED PRIMITIVE H CHONDRITES: ORIGIN AND FIRST OCCURRENCE OF NATIVE Hg IN A METEORITE. C. Caillet Komorowski, O. Boudouma, A. El Goresy, M. Miyahara and M. E. Özel. LMCM Muséum National d’Histoire Naturelle UMR CNRS 7202, Paris 75005, France. E-mail: [email protected]. UPMC-ISTEP, Paris, Bayerishes Geoinstitut, Universität Bayreuth, Germany, Institute of Mineralogy, Pet...

2008
Koichiro Watanabe Tatsushi Takeuchi Tomoo Inoue Ken-ichi Okada

In this paper, we propose a tangible tabletop interface that can identify individual users using digital and physical objects. In environments in which multiple users are participating, the system can provide user-adaptive information regarding both digital and physical objects, and can record and utilize the operation history for individual users. Using this system, users can perform cooperati...

Journal: :Science 2014
S M McLennan R B Anderson J F Bell J C Bridges F Calef J L Campbell B C Clark S Clegg P Conrad A Cousin D J Des Marais G Dromart M D Dyar L A Edgar B L Ehlmann C Fabre O Forni O Gasnault R Gellert S Gordon J A Grant J P Grotzinger S Gupta K E Herkenhoff J A Hurowitz P L King S Le Mouélic L A Leshin R Léveillé K W Lewis N Mangold S Maurice D W Ming R V Morris M Nachon H E Newsom A M Ollila G M Perrett M S Rice M E Schmidt S P Schwenzer K Stack E M Stolper D Y Sumner A H Treiman S VanBommel D T Vaniman A Vasavada R C Wiens R A Yingst

Sedimentary rocks examined by the Curiosity rover at Yellowknife Bay, Mars, were derived from sources that evolved from an approximately average martian crustal composition to one influenced by alkaline basalts. No evidence of chemical weathering is preserved, indicating arid, possibly cold, paleoclimates and rapid erosion and deposition. The absence of predicted geochemical variations indicate...

2003
Scott M. McLennan

Terrestrial planetary surfaces, other than Earth, are overwhelmingly basaltic in character. Because of this, among the most intriguing and significant results from recent studies of Mars are the occurrences of high-silica rocks at the Pathfinder site and orbital thermal emission spectroscopy evidence for a global petrological dichotomy with andesites dominating the entire northern hemispheric p...

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