Results 61 to 70 of about 704,528 (294)

A study of radioactive elements of various rocks in Pattani Province with gamma ray spectrometer [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2002
The radioactivity of the three elements, potassium, uranium and thorium, in rocks of various types in Pattani Province was investigated by using a gamma ray spectrometer.
Kaewtubtim, P., Changkean, S., Hmsuree, H.   +2 more
doaj  

A reference book on rocks and minerals of New England for gifted students in the intermediate grades. [PDF]

, 1959
Thesis (Ed.M.)--Boston ...
Carson, Janine A., Edwards, Harriet L.
core   +1 more source

Metamorphism and Metamorphic Rocks

, 2013
In the previous chapters, we learned about igneous and sedimentary rocks. This chapter presents some general concepts concerned with the process of metamorphism and the formation of metamorphic rocks. How pressure, temperature, and fluids control metamorphic processes and resulting metamorphic changes are discussed.
openaire   +2 more sources

Episodes of fissure formation in the Alps: connecting quartz fluid inclusion, fissure monazite age, and fissure orientation data

Swiss Journal of Geosciences, 2021
Fluid assisted Alpine fissure-vein and cleft formation starts at prograde, peak or retrograde metamorphic conditions of 450–550 °C and 0.3–0.6 GPa and below, commonly at conditions of ductile to brittle rock deformation.
Edwin Gnos, Josef Mullis, Emmanuelle Ricchi, Christian A. Bergemann, Emilie Janots, Alfons Berger   +5 more
doaj   +1 more source

U-Pb SHRIMP zircon dating of Grenvillian metamorphism in Western Sierras Pampeanas (Argentina) : correlation with the Arequipa-Antofalla craton and constraints on the extent of the Precordillera Terrane [PDF]

, 2006
The Sierras Pampeanas of Argentina, the largest outcrop of pre-Andean crystalline basement in southern South America, resulted from plate interactions along the proto-Andean margin of Gondwana, from as early as Mesoproterozoic to Late Paleozoic times (e ...
C. Mark Fanning, Carlos W. Rapela, Carmen Galindo, Casquet, Casquet, Cesar Casquet, Corrievau, Damm, Edgardo Baldo, Galindo, Jose M. González-Casado, Juan A. Dahlquist, Kretz, Loewy, Martignole, McDonough, Pankhurst, Porcher, Powell, Ramos, Ramos, Ramos, Rapela, Rapela, Rivers, Robert J. Pankhurst, Thomas, Tosdal, Varela, Vavra, Vujovich, Wasteneys   +31 more
core   +4 more sources

Geochemical characteristics of apatite in metabasic rocks under different metamorphic conditions: a case study from the Paleoproterozoic Trans-North China Orogen

Dizhi lixue xuebao
Objective  Apatite is a common accessory mineral that is widely distributed in various rock types. Its U-Pb age, trace elements (particularly REE, Th, U, and Sr), and Sr-Nd isotopic compositions provide important information on its chronology and ...
YANG Yuqing, GAO Peng, ZHANG Jian, LIU Xiaoguang, CHENG Changquan, YIN Changqing, QIAN Jiahui   +6 more
doaj   +1 more source

Characterization of Basement Fracture Reservoir In Field ‘X’, South Sumatera Basin, Based On The Analysis of Core And FMI Log

JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2017
Basement reservoir is a reservoir that is located in the basement rock, comprised of either igneous rock or metamorphic rock that has secondary porosity, resulting in its capability to store oil and gas.
Hartawi Riskha, Ildrem Syafri, Ismawan Ismawan, Nanda Natasia   +3 more
doaj   +1 more source

Earth's middle age [PDF]

, 2014
This research was funded through Natural Environment Research Council (grant NE/J021822/1) and the APC was paid through the RCUK OA block grant.Earth's middle age, extending from 1.7 to 0.75 Ga, was characterized by environmental, evolutionary, and ...
Cawood, Peter Anthony, Hawkesworth, Chris   +1 more
core   +1 more source

Metamorphism of rocks and rock flowage

Geological Society of America Bulletin, 1897
At head of title: Bulletin of the Geological Society of America, vol. 9, May 19, 1898. ; Caption-title. ; Mode of access: Internet.
openaire   +3 more sources

Geology of a Part of the Panamint Range, California [PDF]

, 1932
The Panamint Range is a tilted fault-block, uplifted probably in Tertiary time and rejuvenated by very complex recent faulting on the west. This great block is approximately 100 miles long, but the reconnaissance geologic map covers only a tract in the ...
Murphy, F. M.
core