Results 91 to 100 of about 2,993,327 (417)

An improved mapping of ice layer undulations for the IceCube Neutrino Observatory [PDF]

arXiv, 2023
A precise understanding of the optical properties of the instrumented Antarctic ice sheet is crucial to the performance of the IceCube Neutrino Observatory, a cubic-kilometer Cherenkov array of 5,160 digital optical modules (DOMs) deployed in the deep ice below the geographic South Pole.
arxiv  

Smithian–Spathian carbonate geochemistry in the northern Thaynes Group influenced by multiple styles of diagenesis

The Depositional Record, EarlyView.
While the Smithian–Spathian boundary carbon isotopic excursion has been traditionally interpreted as capturing global carbon cycle behaviour, recent studies have suggested that at least some Early Triassic carbon isotopic excursions may incorporate influences from authigenic or early diagenetic processes.
Jordan P. Todes, Franziska R. Blattmann, Torsten Vennemann, Elke Schneebeli‐Hermann, Hugo Bucher, Dan P. Razionale, Clara L. Blättler   +6 more
wiley   +1 more source

Testing Predictions for Migration of Meandering Rivers: Fit for a Curvature‐Based Model Depends on Streamwise Location and Timescale

Journal of Geophysical Research: Earth Surface, Volume 127, Issue 12, December 2022., 2022
Abstract Many meandering rivers migrate, at rates that vary both along‐stream and inversely with the observation interval. Many numerical models have been developed to predict this migration; their success is usually evaluated statistically or by qualitative comparison to observations in map view.
Yuan Li, Ajay B. Limaye
wiley   +1 more source

Depositional environment and reservoir quality assessment of the “Bruks Field,” Niger Delta

Journal of Petroleum Exploration and Production Technology, 2017
This study is a contribution to the understanding of the depositional environment and reservoir architecture of the “Bruks Field,” Niger Delta, Nigeria.
Ayonma W. Mode, Okwudiri A. Anyiam, Solomon I. John   +2 more
doaj   +1 more source

Stratigraphic Model of East Biak Based on Magnetotelluric Data

Journal of Mathematical and Fundamental Sciences, 2020
Biak Island is thought to have originated from the Australian Continental passive margin in the Mesozoic. This passive margin underwent tectonic collision to form the bedrock of Biak Island during the Paleogene.
Alviyanda Alviyanda, Gusti Muhammad Lucki Junursyah, Prihadi Sumintadireja   +2 more
doaj   +1 more source

Sequence stratigraphy of the Cambrian Terreneuvian Dalinzi Formation in southern Liaoning [PDF]

E3S Web of Conferences, 2019
As one of the only Cambrian Terreneuvian rock stratas in southern Liaoning, the Dalinzi Formation is of great significance for studying the evolution of the Early Cambrian sedimentary basin and the global sea level change in North China.
Wu Zijie, Zhong Mishan, Gao Fuliang, Luo Niangang   +3 more
doaj   +1 more source

Complexity penalized hydraulic fracture localization and moment tensor estimation under limited model information [PDF]

, 2013
In this paper we present a novel technique for micro-seismic localization using a group sparse penalization that is robust to the focal mechanism of the source and requires only a velocity model of the stratigraphy rather than a full Green's function model of the earth's response. In this technique we construct a set of perfect delta detector responses,
arxiv   +1 more source

Anatomy and Sequence Architecture of the early Post-Rift in the Neuquén Basin (Argentina): A Response to Physiography and Relative Sea-level Changes [PDF]

, 2013
A detailed architectural and sequence stratigraphic analysis was carried out in the early-post-rift succession of central Neuque´n Basin (Middle Jurassic Cuyo Group), integrating outcrop and subsurface information from a 3,000 km2 area.
Massaferro, Jose L, Schwarz, Ernesto, Spalletti, Luis Antonio, Veiga, Gonzalo Diego   +3 more
core   +2 more sources

Evidence for subsidence rate variation in the Newark Basin and its influence on the deposition of fluvial sediments of the Stockton Formation

The Depositional Record, EarlyView.
The Newark Basin has seen renewed interest recently as a potential location for carbon sequestration. This study uses a recently exposed outcrop to investigate the reasons behind varying lithologies and post‐depositional soft‐sediment deformation in the fluvial sandstones of the Stockton Formation. Using field observations and sediment geochemistry, we
Jane L. Alexander, Sean T. Thatcher, Jay Tobon, Victoria Rivelli   +3 more
wiley   +1 more source

Repeating Low Frequency Icequakes in the Mont‐Blanc Massif Triggered by Snowfalls

Journal of Geophysical Research: Earth Surface, Volume 127, Issue 12, December 2022., 2022
Abstract Deformation mechanisms of glaciers are highly sensitive to basal temperature; the motion of temperate glaciers is dominated by basal slip while cold‐based glaciers deform mainly by internal creep. While basal slip is usually aseismic, unstable slip sometimes occurs and can be detected by seismometers.
Agnès Helmstetter
wiley   +1 more source