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Rock Physics Model and Seismic Dispersion and Attenuation in Gas Hydrate-Bearing Sediments

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

A rock physics model was established to calculate the P-wave velocity dispersion and attenuation caused by the squirt flow of fluids in gas hydrate-be......

Sedimentary Responses to Climate Changes and Human Activities Over the Past 7400 Years in the Western Sunda Shelf

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

High-resolution records of grain size, major and trace elements, and Sr-Nd isotopes of Core K17 from the western Sunda Shelf were investigated to eval......

Osteohistology of the Scapulocoracoid of Confuciusornis and Preliminary Analysis of the Shoulder Joint in Aves

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

As key components of the tetrapod pectoral girdle, the scapula and coracoid have played a significant role in the evolution of forelimb locomotion amo......

Influence of Internal Structure on Breaking Process of Short-Lived Landslide Dams

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

The diversity of the landslide dam structure will result in the difference in the dam body's seepage. In this paper, based on two kinds of soil bodies......

Geochemical Characteristics of Hydrocarbons in Core Sediments From the Southwest Sub-Basin of the South China Sea and Its Implications for the Sedimentary Environment

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

Marine sediments are found to record various information for example the evolution of ocean and the exchange of matter and energy between the surround......

Evaluation Method for Thixotropy of Clay Subjected to Unconfined Compressive Test

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

Thixotropy is a hot topic in the field of rheology of dispersed systems. Studying the quantitative index and evaluation method for thixotropy of clay ......

Radiocarbon and Luminescence Dating of Lacustrine Sediments in Zhari Namco, Southern Tibetan Plateau

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

There are more than 1,000 lakes within the Tibetan Plateau (TP), all of which are sensitive to changes in regional climate and local hydrology. Lacust......

Singular Spectrum Analysis of the Total Electron Content Changes Prior to M >= 6.0 Earthquakes in the Chinese Mainland During 1998-2013

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

Early studies have shown evidence of the seismo-ionospheric perturbations prior to large earthquakes. Due to dynamic complexity in the ionosphere, the......

Small Fractures Caused by the 2019 Ridgecrest Earthquake Sequence: Insights From 3D Coseismic Displacement and Uniaxial Loading Rock Experiments

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

The moment magnitude (Mw) 6.4 and 7.1 Ridgecrest earthquake sequence that occurred on July 4 and 6, 2019, ruptured a conjugate fault system within the......

Reservoir Characteristics and Main Controlling Factors of the Mesozoic Volcanic Rocks in the D Oilfield in Southern Gentle Slope Zone of the Laizhouwan Sag

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

The Mesozoic volcanic rocks are widely developed in the Bohai Bay basin. The D oilfield, located in the southeast of the Bohai Bay Basin, is a Cenozoi......

Mercury Anomalies Link to Extensive Volcanism Across the Late Devonian Frasnian-Famennian Boundary in South China

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

The Late Devonian Frasnian-Famennian (F-F) mass extinction has been long-time debated by non-volcanic causes, extra-terrestrial impacts, and large ign......

Adaption of Theoretical Adsorption Model on Coal: Physical Structure

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

With the motivation to investigate the role of coal physical structure on the adsorption performance of coal reservoir, 18 different types of coal sam......

Deep Dehydration as a Plausible Mechanism of the 2013 Mw 8.3 Sea of Okhotsk Deep-Focus Earthquake

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

The rupture mechanisms of deep-focus (>300 km) earthquakes in subducting slabs of oceanic lithosphere are not well understood and different from br......

Seasonal/Interannual Variation and Controlling Factors for Oxygen and Carbon Isotopes of Ostracod Shells Collected From a Time-Series Sediment Trap in Lake Qinghai

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

Because the shell substance of an ostracod is derived entirely from the water body where it lives, its chemical compositions are sensitive to aquatic ......

Shale Reservoir 3D Structural Modeling Using Horizontal Well Data: Main Issues and an Improved Method

期刊: FRONTIERS IN EARTH SCIENCE, 2021; 9 ()

Shale oil and gas fields usually contain many horizontal wells. The key of 3D structural modeling for shale reservoirs is to effectively utilize all s......

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