Some implications of late Cenozoic volcanism to geothermal potential in the High Lava Plains of south-central Oregon

1974 ◽  
Author(s):  
George Walton Walker
Keyword(s):  
Late Cenozoic ◽  
South Central ◽  
Geothermal Potential ◽  
Cenozoic Volcanism ◽  
High Lava Plains

EVALUATION OF THE GEOTHERMAL POTENTIAL OF THE CAMAS PRAIRIE, SOUTH-CENTRAL IDAHO

2020 ◽  
Author(s):  
Connor J. Smith ◽  
◽  
Thomas E. Lachmar ◽  
John W. Shervais ◽  
James P. Evans ◽  
...  
Keyword(s):  
South Central ◽  
Geothermal Potential ◽  
Central Idaho

Geological Correlation Between Northern Cyprus And Southern Anatolia

2021 ◽  
Author(s):  
Yucel Yilmaz
Keyword(s):  
Carbonate Platform ◽  
Middle Eocene ◽  
Source Region ◽  
Oceanic Lithosphere ◽  
Late Eocene ◽  
Central Anatolia ◽  
Late Cenozoic ◽  
Ophiolitic Mélange ◽  
South Central ◽  
Northern Cyprus

The island of Cyprus constitutes a fragment of southern Anatolia separated from the mainland by left-oblique transtension in late Cenozoic time. However, a geological framework of offset features of the south-central Anatolia, for comparison of Cyprus with a source region within and west of the southeastern Anatolian suture zone, has not yet been developed. In this paper, I enumerate, describe, and compare a full suite of potentially correlative spatial and temporal elements exposed in both regions. Northern Cyprus and south-central Anatolia have identical tectonostratigraphic units. At the base of both belts, crop out ophiolitic mélange-accretionary complex generated during the northward subduction of the NeoTethyan Oceanic lithosphere from the Late Cretaceous until the end of middle Eocene. The nappes of the Taurus carbonate platform were thrust above this internally chaotic unit during late Eocene. They began to move as a coherent nappe pile from that time onward. An asymmetrical flysch basin was formed in front of this southward moving nappe pile during the early Miocene. The nappes were then thrust over the flysch basin fill and caused its tight folding. Cyprus separated from Anatolia in the Pleistocene-Holocene when, transtensional oblique faults with dip-slip components caused the development of the Adana and Iskenderun basins and the separation of Cyprus from Anatolia.

Late Cenozoic volcanism in the Almaludag region, Azerbaijan province, northwest Iran: Evidence for post-collisional extension

2020 ◽  
Vol 141-142 ◽  
pp. 101779
Author(s):  
Morteza Khalatbari Jafari ◽  
Nafiseh Salehi Siavashani ◽  
Hassan A. Babaie ◽  
Wenjiao Xiao ◽  
Mohammad Faridi ◽  
...  
Keyword(s):  
Late Cenozoic ◽  
Cenozoic Volcanism ◽  
Northwest Iran

scholarly journals Heat Flow and Geothermal Potential in the South-Central United States

2008 ◽  
Vol 17 (4) ◽  
pp. 227-243 ◽  
Author(s):  
Petru T. Negraru ◽  
David D. Blackwell ◽  
Kamil Erkan
Keyword(s):  
United States ◽  
Heat Flow ◽  
The South ◽  
South Central ◽  
Geothermal Potential ◽  
Central United States

Seismicity and late cenozoic volcanism in parts of Papua-New Guinea

1971 ◽  
Vol 12 (1) ◽  
pp. 15-22 ◽  
Author(s):  
R.W. Johnson ◽  
D.E. Mackenzie ◽  
I.E. Smith
Keyword(s):  
Papua New Guinea ◽  
New Guinea ◽  
Late Cenozoic ◽  
Cenozoic Volcanism

scholarly journals Late Cenozoic Uguumur and Bod-Uul Volcanic Centers in Northern Mongolia: Mineralogy, Geochemistry, and Magma Sources

Minerals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 612
Author(s):  
Alexander Perepelov ◽  
Mikhail Kuzmin ◽  
Svetlana Tsypukova ◽  
Yuri Shcherbakov ◽  
Sergey Dril ◽  
...  
Keyword(s):  
Basaltic Magma ◽  
Magma Source ◽  
Depth Range ◽  
Late Cenozoic ◽  
Central Mongolia ◽  
Cenozoic Volcanism ◽  
Northern Mongolia ◽  
Magma Sources ◽  
Response To Stress ◽  
Isotope Systematics

The paper presents new data on mineralogy, geochemistry, and Sr-Nd-Pb isotope systematics of Late Cenozoic eruption products of Uguumur and Bod-Uul volcanoes in the Tesiingol field of Northern Mongolia, with implications for the magma generation conditions, magma sources, and geodynamic causes of volcanism. The lavas and pyroclastics of the two volcanic centers are composed of basanite, phonotephrite, basaltic trachyandesite, and trachyandesite, which enclose spinel and garnet peridotite and garnet-bearing pyroxenite xenoliths; megacrysts of Na-sanidine, Ca-Na pyroxene, ilmenite, and almandine-grossular-pyrope garnets; and carbonate phases. The rocks are enriched in LILE and HFSE, show strongly fractioned REE spectra, and are relatively depleted in U and Th. The low contents of U and Th in Late Cenozoic volcanics from Northern and Central Mongolia represent the composition of a magma source. The presence of carbonate phases in subliquidus minerals and mantle rocks indicates that carbon-bearing fluids were important agents in metasomatism of subcontinental lithospheric mantle. The silicate-carbonate melts were apparently released from eclogitizied slabs during the Paleo-Asian and Mongol-Okhotsk subduction. The parent alkali-basaltic magma may be derived as a result from partial melting of Grt-bearing pyroxenite or eclogite-like material or carobantized peridotite. The sources of alkali-basaltic magmas from the Northern and Central Mongolia plot different isotope trends corresponding to two different provinces. The isotope signatures of megacrysts are similar to those of studied volcanic centers rocks. The P-T conditions inferred for the crystallization of pyroxene and garnet megacrysts correspond to a depth range from the Grt-Sp phase transition to the lower crust. Late Cenozoic volcanism in Northern and Central Mongolia may be a response to stress propagation and gravity instability in the mantle associated with the India-Asia collision.

scholarly journals Late Cenozoic volcanism and rates of active faulting in eastern Iran

2009 ◽  
Vol 177 (2) ◽  
pp. 783-805 ◽  
Author(s):  
R. T. Walker ◽  
P. Gans ◽  
M. B. Allen ◽  
J. Jackson ◽  
M. Khatib ◽  
...  
Keyword(s):  
Late Cenozoic ◽  
Active Faulting ◽  
Cenozoic Volcanism ◽  
Eastern Iran
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