Results 81 to 90 of about 4,153 (178)

Continent formation through time [PDF]

open access: yes, 2014
The continental crust is the primary archive of geological history, and is host to most of our natural resources. Thus, the following remain critical questions in Earth Science, and provide an underlying theme to all of the contributions within this ...
Clift, P.D.   +3 more
core   +1 more source

Differences and Causal Mechanisms in the Lithospheric Thermal Structures in the Cratons in East China: Implications for Their Geothermal Resource Potential

open access: yesEnergies
The thermal structure of the lithosphere is key to understanding its thickness, properties, evolution, and geothermal resources. Cratons are known for their low heat flow and deep lithospheric roots.
Jinhui Wu   +8 more
doaj   +1 more source

Archean foreland basin tectonics in the Witwatersrand, South Africa [PDF]

open access: yes
The Witwatersrand Basin of South Africa is the best-known of Archean sedimentary basins and contains some of the largest gold reserves in the world. Sediments in the basin include a lower flysch-type sequence and an upper molassic facies, both of which ...
Burke, K., Kidd, W. S. F., Kusky, T. M.
core   +1 more source

The lithospheric structure of Pangea [PDF]

open access: yes
Lithospheric thickness of continents, obtained from Rayleigh wave tomography, is used to make maps of the lithospheric thickness of Pangea by reconstructing the continental arrangement in the Permian. This approach assumes that lithosphere moves with the
Daly, Michael C.   +2 more
core   +1 more source

Continental growth seen through the sedimentary record [PDF]

open access: yes, 2017
This work was supported by the Natural Environment Research Council [NERC grant NE/K008862/1], the Leverhulme Trust [grant RPG-2015–422], and the Australian Research Council [grant FL160100168].Sedimentary rocks and detrital minerals sample large areas ...
Cawood, Peter A.   +3 more
core   +5 more sources

Probabilistic seismic hazard maps for the sultanate of Oman [PDF]

open access: yes, 2016
This study presents the results of the first probabilistic seismic hazard assessment (PSHA) in the framework of logic tree for Oman. The earthquake catalogue was homogenized, declustered, and used to define seismotectonic source model that characterizes ...
Al-Hashmi, S.   +9 more
core   +1 more source

Malignant melanoma of the urethra: a rare histologic subdivision of vulvar cancer with a poor prognosis [PDF]

open access: yes, 2012
Malignant melanoma of the urethra is a rare tumour that is difficult to diagnose and treat, resulting in a poor prognosis. In this paper, we present the case of a 65-year-old woman who was referred to a gynaecologist because of a urethral mass that ...
Alkatout, Ibrahim   +8 more
core   +2 more sources

Uncertainty-quantified 3D ambient noise tomography using transdimensional Monte Carlo inversion

open access: yesFrontiers in Earth Science
Traditional two-step surface-wave tomography often yields discontinuous models and compound uncertainty. We present the first fully 3-D transdimensional Bayesian inversion with adaptive Voronoi parameterization and reversible-jump MCMC for near-surface ...
Yi Liu   +5 more
doaj   +1 more source

Geology and Geochemistry of Hadean Zircon Bearing Supracrustals from Quad Creek, Eastern Beartooth Mountains (Montana, USA) [PDF]

open access: yes, 2011
Quad Creek Paleoarchean quartzites (~3300 Ma) in Montana contain \u3e3900 Ma detrital zircons. The outcrop-scale geological and geochemical context of these rocks is not well documented.
Maier, Analisa Charlotte
core   +2 more sources

Ore genesis and vertical variations of ore-forming fluids in the Dayingezhuang gold deposit, Jiaodong Peninsula: Constraints from fluid inclusions, ore forming elements, and H-O-S-Pb isotopes

open access: yes地质科技通报
Objective The Dayingezhuang gold deposit in the middle of the Zhaoping metallogenic belt represents a typical altered-rock type deposit with a giant Au reserve of 283 tons on the Jiaodong Peninsula. The genetic type of the deposit is still controversial.
Ziqing YAN   +8 more
doaj   +1 more source

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