Results 11 to 20 of about 6,268 (144)

Petrography, Geochemistry and Tectonic setting of Tertiary volcanic rocks in the North of Chah Gonbad (Northeast of Seh Chengi, Lut Block) [PDF]

open access: yesپترولوژی
IntroductionThe Chah Gonbad area is located 125 km southwest of Birjand, 90 km southwest of Khousf, and about 40 km southwest of Khour village, between the longitudes 58º07ʹ30ʺ–58º14ʹ50ʺ and the latitudes 32º36ʹ23ʺ–32º42ʹ40ʺ.
Mohammad Hossein Yousefzadeh   +1 more
doaj   +1 more source

Petrography, mineral chemistry and geochemistry of post-ophiolitic volcanic rocks in the Ratouk area (south of Gazik, east of Iran)

open access: yesJournal of Economic Geology, 2017
Introduction Basaltic volcanoes are one of the volcanisms that have occurred in different parts of the world. The study of these lavas is important for petrologists, because they are seen in different tectonic settings and therefore diverse mechanisms ...
Zahra Vahedi Tabas   +2 more
doaj   +1 more source

Effective elastic thickness in the Central Andes. Correlation to orogenic deformation styles and lower crust high-gravity anomaly [PDF]

open access: yes, 2018
Global studies have assessed the importance of elastic thickness (Te) on orogenic evolution, showing that the style and nature of upper crustal shortening are influenced by the inherited lithospheric strength. Thus, pioneer works have identified that the
Garcia, Hector Pedro Antonio   +6 more
core   +2 more sources

Uplift of Central Mongolia Recorded in Vesicular Basalts [PDF]

open access: yes, 2016
Epeirogenic histories of highland areas have confounded earth scientists for decades, as there are few sedimentary records of paleoelevation in eroding highlands.
Ancuta, L. D.   +4 more
core   +3 more sources

Seismic source in the Iberian-African plate boundary [PDF]

open access: yes, 2003
The plate boundary between Iberia and Africa has been studied using data on seismicity and focal mechanisms. The region has been divided into three areas: A; the Gulf of Cadiz; B, the Betics, Alboran Sea and northern Morocco; and C, Algeria.
Bezzeghoud, Mourad   +3 more
core   +1 more source

Coupled mantle dripping and lateral dragging controlling the lithosphere structure of the NW-Moroccan margin and the Atlas Mountains: A numerical experiment [PDF]

open access: yes, 2014
Recent studies integrating gravity, geoid, surface heat flow, elevation and seismic data indicate a prominent lithospheric mantle thickening beneath the NW-Moroccan margin (LAB >200 km-depth) followed by thinning beneath the Atlas Domain (LAB about 80 km-
Fernández Gómez, Manel   +2 more
core   +2 more sources

Hybrid Event Beds Generated By Local Substrate Delamination On A Confined-Basin Floor [PDF]

open access: yes, 2016
The outer parts of deep-water fans, and the basin plains into which they pass, are often described as areas where erosion is negligible and turbidite systems have net aggradation. Nevertheless sedimentological and stratigraphic analysis of outer fan lobe
Felletti, F   +4 more
core   +1 more source

Mineral chemistry of late Variscan gabbros from central Spain: constraints on crystallisation processes and nature of the parental magmas [PDF]

open access: yes, 2015
© 2016. Universidad Complutense de Madrid. The commercial rights of the printed and online versions of Journal of Iberian Geology are property of the Universidad Complutense de Madrid (UCM) and the Consejo Superior de Investigaciones CientÍficas (CSIC),
Jeffries, T   +3 more
core   +3 more sources

Tectonic control on southern Sierra Nevada topography, California [PDF]

open access: yes, 2009
In this study we integrate the apatite (U-Th)/He thermochronometric technique with geomorphic, structural, and stratigraphic studies to pursue the origin and evolution of topographic relief related to extensive late Cenozoic faulting in the southern ...
Farley, Kenneth A.   +3 more
core   +1 more source

3-D multiobservable probabilistic inversion for the compositional and thermal structure of the lithosphere and upper mantle: III. Thermochemical tomography in the Western-Central U.S. [PDF]

open access: yes, 2016
Acknowledgments We are indebted to F. Darbyshire and J. von Hunen for useful comments on earlier versions of this work. This manuscript benefited from thorough and constructive reviews by W. Levandowski and an anonymous reviewer.
Aoki K.   +10 more
core   +2 more sources

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