Results 101 to 110 of about 32,561 (204)

Anatomy of the Emeishan Mantle Plume Head: Insights From New Geochronologic, Geochemical, and Geologic Data

open access: yesGeochemistry, Geophysics, Geosystems
The link between mantle plumes and the formation of large igneous provinces (LIPs) is well established although the anatomy of these remains equivocal. Recent experimental studies and geophysical data suggest that the mantle plume head is more likely to ...
Hongbo Li   +9 more
doaj   +1 more source

Geologic Guide for the Northern Part of the Peninsular Range Province, Southern California [PDF]

open access: yes, 1954
This geologic guide deals with parts of Los Angeles, San Bernardino, Riverside, and San Diego Counties, in southern California, and in effect is a sampling of the geology and mineral deposits in the northern part of the Peninsular Range province.
Jahns, Richard H.
core  

Investigations and Problems of Southern California Geology [PDF]

open access: yes, 1954
Recognition of geologic features and processes by the peoples of southern California dates back at least several thousand years, when Indian tribes lived in some of the coastal areas and on the shores of now-extinct lakes farther inland.
Jahns, Richard H.
core  

Crustal Structure and Tectonic Origin of Late Cretaceous Oceanic Crust and Adjacent Caribbean Large Igneous Province in the Colombian Basin

open access: yesGeochemistry, Geophysics, Geosystems
The tectonic origin of the Caribbean Large Igneous Province (CLIP) and its adjacent oceanic crust in the Colombian Basin are examined using 3D seismic reflection mapping, regional gravity and magnetic data mapping, and a compilation of CLIP radiometric ...
Juan Pablo Ramos   +2 more
doaj   +1 more source

Workshop on Moon in Transition: Apollo 14, KREEP, and Evolved Lunar Rocks [PDF]

open access: yes
Lunar rocks provide material for analyzing lunar history and now new evaluation procedures are available for discovering new information from the Fra Mauro highlands rocks, which are different from any other lunar samples.
Taylor, G. J., Warren, P. H.
core   +1 more source

Study of arcuate structural trends in Utah and Nevada using ERTS-1 imagery [PDF]

open access: yes
There are no author-identified significant results in this ...
Jensen, M. L., Smith, M. R.
core   +1 more source

Relations between extensional tectonics and magmatism within the Southern Oklahoma aulacogen [PDF]

open access: yes
Variations in the geometry, distribution and thickness of Cambrian igneous and sedimentary units within southwest Oklahoma are related to a late Proterozoic - early Paleozoic rifting event which formed the Southern Oklahoma aulacogen.
Gilbert, M. C., Mcconnell, D. A.
core   +1 more source

Crustal Heterogeneity Onshore Spitsbergen: Data Integration and Forward Modeling of Potential Field Data

open access: yesGeochemistry, Geophysics, Geosystems
The Svalbard archipelago is well‐known for its outcropping geology, but its subsurface geometry and physical properties are less well constrained. To address this knowledge gap, a multidisciplinary approach has been applied to integrate potential field ...
Fenna Ammerlaan   +4 more
doaj   +1 more source

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