Studies in Late Cenozoic volcanism in west-central Utah

1980 ◽  
Keyword(s):  
Late Cenozoic ◽  
West Central ◽  
Cenozoic Volcanism

Late Cenozoic Evaporite Tectonism and Volcanism in West-Central Colorado

2002 ◽  
Author(s):  
Robert M. Kirkham ◽  
Robert B. Scott ◽  
Thomas W. Judkins
Keyword(s):  
Late Cenozoic ◽  
West Central

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

Palaeoenvironmental significance of diatom and vertebrate fossils from Late Cenozoic tectonic basins in west-central México: A review

2010 ◽  
Vol 219 (1-2) ◽  
pp. 79-94 ◽  
Author(s):  
I. Israde-Alcántara ◽  
W.E. Miller ◽  
V.H. Garduño-Monroy ◽  
J. Barron ◽  
M.A. Rodriguez-Pascua
Keyword(s):  
Central Mexico ◽  
Late Cenozoic ◽  
West Central

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

Late Cenozoic volcanism of the southeastern Colorado Plateau: I. Volcanic geology of the Lucero area, New Mexico

1987 ◽  
Vol 99 (4) ◽  
pp. 463 ◽  
Author(s):  
W. SCOTT BALDRIDGE ◽  
FRANK V. PERRY ◽  
MUHAMMAD SHAFIQULLAH
Keyword(s):  
New Mexico ◽  
Colorado Plateau ◽  
Late Cenozoic ◽  
Cenozoic Volcanism
Sign in / Sign up

Export Citation Format

Share Document