Results 21 to 30 of about 749,216 (187)

Seismic topographic scattering in the context of GW detector site selection

, 2012
In this paper, we present a calculation of seismic scattering from irregular surface topography in the Born approximation. Based on US-wide topographic data, we investigate topographic scattering at specific sites to demonstrate its impact on Newtonian ...
Aki K, Beccaria M, Creighton T, ET Science Team, Harms J, Harms J DeSalvo R Dorsher S Mandic V, Hild S, J Harms, Kuroda K, LIGO Scientific Collaboration, M Coughlin, Ogilvy J A, Oregon Geology, Peterson J, The Virgo Collaboration   +14 more
core   +1 more source

Geology and mineralization of the Sanshandao supergiant gold deposit (1200 t) in the Jiaodong Peninsula, China: A review

China Geology, 2021
The Jiaodong Peninsula in Shandong Province, China is the world’s third-largest gold metallogenic area, with cumulative proven gold resources exceeding 5000 t.
Mingzhe Song, Zhenggui Ding, Junjiao Zhang, Ying-xin Song, Jun Bo, Yu-qun Wang, Hong-Bo Liu, Shi-yong Li, Jie Li, Rui-xiang Li, Bin Wang, Xiang Liu, Liang-liang Zhang, Lei-lei Dong, Jian Li, C. He   +15 more
semanticscholar   +1 more source

Effect of rocks displacement activation on the formation of the surface trough during anthracite seams extraction [PDF]

, 2017
Purpose. To define peculiarities related to the formation of the dynamic and stationary half-troughs under the influence of anthracite seam extraction by adjacent faces. Methods.
Filatiev, M
core   +2 more sources

Genesis and reservoir preservation mechanism of 10 000‐m ultradeep dolomite in Chinese craton basin

Deep Underground Science and Engineering, EarlyView.
Potential exploration target stratum of 10 000‐m ultradeep dolomite in Sichuan Basin and Tarim Basin, China. Abstract The 10 000‐m ultradeep dolomite reservoir holds significant potential as a successor field for future oil and gas exploration in China's marine craton basin.
Guangyou Zhu, Xi Li, Bin Zhao, Hua Jiang, Yinghui Cao, Yan Zhang, Weiyan Chen, Tingting Li, Jiakai Hou   +8 more
wiley   +1 more source

Wind transport of foraminiferal tests into subaerial dunes: an example from western Ireland

Journal of Micropalaeontology, 2009
INTRODUCTION The empty tests of dead foraminifera behave as sedimentary particles and are subject to transport, although their different shapes and effectively low density means that their hydraulic equivalence is greater than that of spherical quartz ...
J. Murray
semanticscholar   +1 more source

Rupture by damage accumulation in rocks [PDF]

, 2006
The deformation of rocks is associated with microcracks nucleation and propagation, i.e. damage. The accumulation of damage and its spatial localization lead to the creation of a macroscale discontinuity, so-called "fault" in geological terms, and to the
A Buchel, A Guarino, A Johansen, A Lin, AM Boullier, B Gutenberg, B Menendez, B Velde, C Marone, C Nicholson, C Scavia, CA Tang, CA Tang, CAJ Wibberley, CG Bufe, CG Sammis, CH Scholz, CH Scholz, D Amitrano, D Place, D Sornette, DA Lockner, DA Lockner, DA Lockner, David Amitrano, DE Moore, E Bouchaud, E Bouchaud, EM Schulson, F Kun, GCP King, H Nechad, HL Li, IG Main, J Biarez, J Kemeny, J Mori, J Rice, J Schmittbuhl, J Schmittbuhl, J Weiss, J Weiss, JC Jaeger, JVA Keller, JW Rudnicki, K Chen, K Mair, K Michibayashi, K Mogi, LS Costin, M Gerstenberger, P Cowie, P Grassberger, RL Kranz, RP Young, S Zapperi, S Zapperi, SC Jaume, SJD Cox, SR Brown, T Hirata, W Wang, YC Wang, Z Olami, Z Reches   +64 more
core   +4 more sources

Damage modeling of CO2 injection well interfaces under coupled thermal, hydraulic and mechanical behavior

Deep Underground Science and Engineering, EarlyView.
This paper presents an investigation of CO2 injection well damage evolution considering different injection temperatures and the presence of a pre‐existing defect. The main outcome is that the accurate prediction of well leakage risk requires characteristics such as initial defects to be understood and represented in any modeling efforts. Abstract This
Lee J. Hosking, Xiangming Zhou
wiley   +1 more source

The use of unmanned aerial vehicles (UAVs) for engineering geology applications

Bulletin of Engineering Geology and the Environment, 2020
This paper represents the result of the IAEG C35 Commission “Monitoring methods and approaches in engineering geology applications” workgroup aimed to describe a general overview of unmanned aerial vehicles (UAVs) and their potentiality in several ...
D. Giordan, M. Adams, I. Aicardi, M. Alicandro, P. Allasia, M. Baldo, P. De Berardinis, D. Dominici, D. Godone, P. Hobbs, Veronika Lechner, T. Niedzielski, M. Piras, M. Rotilio, R. Salvini, V. Segor, B. Sotier, F. Troilo   +17 more
semanticscholar   +1 more source

Late Palaeozoic lithostratigraphy of the Andean Precordillera revisited (San Juan Province, Argentina) [PDF]

, 2014
New data on some neopalaeozoic lithostratigraphic units of the central sector of the Argentinean Precordillera are presented. The western Precordillera displays occasional outcrops of siliciclastic rocks of the Late Palaeozoic.
Busquets, P, Cardo, R., Colombo, F., Heredia, N., Limarino, Carlos Oscar, Mendez Bedia, I, Spalletti, Luis Antonio   +6 more
core   +2 more sources

Study on fracture parameter calibration and failure characteristics of rock with hole and crack

Deep Underground Science and Engineering, EarlyView.
The SIF and plastic zone equations for a single hole and crack have been derived. The model's failure state leads to the identification of four types of cracks. The plastic zone increases with increased brittleness and decreased crack length. Abstract Cracks within the surrounding rock of roadways significantly affect their stability and failure ...
Shaochi Peng, Wensong Wang
wiley   +1 more source