Results 81 to 90 of about 4,930 (232)

Geophysical investigation of the Santa Marta impact structure—Piauí State, Brazil

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The Santa Marta impact structure in northeastern Brazil, recognized as a partially preserved complex crater, was investigated through an integrated geophysical study employing magnetotelluric (MT) and gravity methods. Our research provides constraints on the crater's subsurface architecture.
Elienara Vasconcelos   +5 more
wiley   +1 more source

Basic flow characteristics of raw and spent oil shale

open access: yes, 2022
Technical memorandum no. 65-4.Includes charts, technical drawings.These technical memoranda pertain to work performed at Anvil Points.The United States Bureau of Mines facility at Anvil Points, near Rifle, Colorado, was reactivated starting in May 1964 ...

core  

Revisiting the Hummeln structure, Sweden—A shallow marine Cambrian impact structure

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Hummeln is a simple impact structure located in south‐eastern Sweden. It is approximately 1.2 km in diameter and almost completely covered by a lake. Here, we present the first detailed investigation of impactites and mapping of the 164.25 m deep drill core Hummeln‐1 with a focus on impact metamorphism and the impact process.
S. Alwmark   +8 more
wiley   +1 more source

Energy Production Potential of Ultra-Deep Reservoirs in Keshen Gas Field, Tarim Basin: From the Perspective of Prediction of Effective Reservoir Rocks

open access: yesEnergies
The identification and prediction of effective reservoir rocks are important for evaluating the energy production potential of ultra-deep tight sandstone reservoirs.
Zhida Liu   +4 more
doaj   +1 more source

Az Óbányai Aleurolit Formáció fekete palájának izotópgeokémiai és szénhidrogéngenetikai jellemzése | Isotope geochemistry and characterization of hydrocarbon potential of black shale from Óbánya Siltstone Formation

open access: yes, 2007
A toarci Óbányai Aleurolit Formáció réka-völgyi szelvényének (Mecsek hegység) alsó részéből gyűjtött fekete pala minták összes szerves szén-tartalma a laminált kőzettípusban 3,89–8,12%, a vékonyréteges változatban 2,14–3,29%.
Rostási, Ágnes   +3 more
core  

Index to Anvil Points Oil Shale Research Center files

open access: yes, 2022
Technical memorandum no. 67-41.These technical memoranda pertain to work performed at Anvil Points.The United States Bureau of Mines facility at Anvil Points, near Rifle, Colorado, was reactivated starting in May 1964 and was operated during 1965, 1966 ...

core  

Impact‐diagnostic criteria for use in confirming a meteorite impact origin of terrestrial geological structures: Recommendations by the Impact Cratering Committee of the Meteoritical Society

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The framework of the Impact Cratering Committee (ICC) of the Meteoritical Society was approved in 2020, with the first committee members appointed in 2023. The ICC has a mandate to (1) approve, maintain, and update a database of confirmed terrestrial meteorite impact structures, (2) define and regularly update the criteria used for ...
A. J. Cavosie   +11 more
wiley   +1 more source

Anvil Points Oil Shale Research Center, reconciliation of project-owned equipment, May 3, 1968

open access: yes, 2022
These report is of the equipment used for the oil shale project at Anvil Points.The United States Bureau of Mines facility at Anvil Points, near Rifle, Colorado, was reactivated starting in May 1964 and was operated during 1965, 1966, and 1967.

core  

Regional distribution of field shale outcrop in China and its shale gas significance

open access: yes, 2022
In China, shales are widely distributed, continuous in time and complex in space. In this paper, the distribution of shales in the North China, South China and Tarim Plates are systematically sorted out and discussed.
YANG Yuanyuan   +10 more
core   +1 more source

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