Results 21 to 30 of about 1,849,064 (302)

Sedimentology and geochemistry of Zubair Formation sandstone reservoir, East Baghdad Oilfield, central Iraq

Kuwait Journal of Science, 2023
Two wells (EB10 and EB92) within the East Baghdad Oilfields in central Iraq were chosen to study the Zubair Formation sandstones. The Zubair sandstones mostly consist of quartz (84–97.5%), feldspar (0–2.9%), and heavy minerals (0.1–1%) with a few rock ...
Rana A. Ali, Hassan K. Jassim
doaj   +1 more source

Geochemistry and tectonic development of Cenozoic magmatism in the Carpathian–Pannonian region [PDF]

, 2011
This review considers the magmatic processes in the Carpathian–Pannonian Region (CPR) from Early Miocene to Recent times, as well as the contemporaneous magmatism at its southern boundary in the Dinaride and Balkans regions.
Hilary Downes, Ioan Seghedi, Seghedi, I., Downes, Hilary   +3 more
core   +1 more source

The tectonic evolution of central and Northern Madagascar and its place in the final assembly of Gondwana [PDF]

, 2002
Copyright © 2002 by The University of Chicago. All rights reserved.Recent work in central and northern Madagascar has identified five tectonic units of the East African Orogen (EAO), a large collisional zone fundamental to the amalgamation of Gondwana ...
Windley, F., Brian F. Windley, Collins, A., Alan S. Collins   +3 more
core   +1 more source

Tectonic setting of kimberlites

Lithos, 2009
Kimberlites can be viewed as time capsules in a global plate tectonic framework. Their distribution illustrates clustering in time and space. Kimberlite ages span the assembly and break-up of a number of supercontinents, such as Rodinia and Gondwana.
Jelsma, Hielke, Barnett, Wayne, Richards, Simon, Lister, Gordon   +3 more
openaire   +3 more sources

Tectonic significance of changes in post-subduction Pliocene-Quaternary magmatism in the south east part of the Carpathian-Pannonian Region [PDF]

, 2010
The south-eastern part of the Carpathian–Pannonian region records the cessation of convergence between the European platform/Moesia and the Tisza–Dacia microplate.
Downes, H., Szacáks, A., Maţenco, L., Szakács, A., Mason, P.R.D., Seghedi, I., Matenco, L.C., Downes, Hilary, Pécskay, Z.   +8 more
core   +2 more sources

Testing of multidimensional tectonomagmatic discrimination diagrams on fresh and altered rocks

Geologica Carpathica, 2016
We evaluated 55 multidimensional diagrams proposed during 2004-2013 for the tectonic discrimination of ultrabasic, basic, intermediate, and acid magmas.
Rivera-Gómez M. Abdelaly, Verma Surendra P.   +1 more
doaj   +1 more source

Geomorphological insight into changing tectonic regime, Pasinler Basin, Turkey [PDF]

, 2008
The Pasinler Basin, in the East Anatolian Contractional Province, features a suite of geomorphological zones, visible in the field, air photographs and Landsat and SRTM DEM imagery. These zones reflect past and current tectonically influenced processes.
Rust, DJ, Bayraktutan, M., Collins, P., Rust, Derek, Bayraktutan, MS, Collins, PEF   +5 more
core   +1 more source

Triassic magmatism and tectonic setting of Eastern Tianshan, NW China: constraints from the geochemistry and zircon U–Pb–Hf isotopes of granitoids in the Yamansu area

Frontiers in Earth Science, 2023
Introduction: To provide constraints on the Triassic tectonic setting of Eastern Tianshan, an integrated study was conducted on the geochronological and geochemical data for granodiorites, monzogranites, and two-mica granites from the Yamansu area on the
Hongming Cai, Hongming Cai, Hongming Cai, Xiangkuan Gong, Guiping Liu, Ruiqing Guo, Keyong Wang   +6 more
doaj   +1 more source

Present-day stress orientations and tectonic provinces of the NW Borneo collisional margin [PDF]

, 2010
Extent: 15p.Borehole failure observed on image and dipmeter logs from 55 petroleum wells across the NW Borneo collisional margin were used to determine maximum horizontal stress (σH) orientations; combined with seismic and outcrop data, they define seven
Richard R. Hillis, Rosalind C. King, Mark R. P. Tingay, Christopher K. Morley, Hillis, R., James Clark, Tingay, Mark, Tingay, M., King, R., Clark, J., Morley, C.   +10 more
core   +1 more source

Petrological and geochemical constraints on tectonic settings of the Late Carboniferous-Early Permian, Central Junggar, China

Journal of Natural Gas Geoscience, 2020
It is assumed that the central part of Junggar underwent continuous deposition from the Mesozoic to Cenozoic, but few data are available from deep well to support this hypothesis.
Shuncun Zhang, Shengyin Zhang, Linhao Fang, Xinchuan Lu, Hui Guo, Ji'an Shi   +5 more
doaj   +1 more source