Results 181 to 190 of about 139,530 (365)

Geological and geotechnical challenges on the Great Dyke of Zimbabwe and their impact on hardrock pillar design

Deep Underground Science and Engineering, EarlyView.
The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza, Hendrik Grobler, Moshood Onifade, Manoj Khandelwal   +3 more
wiley   +1 more source

Multipolarized radar reveals shallow subsurface structure and middle-late Amazonian aqueous activity in Utopia Planitia, Mars. [PDF]

Natl Sci Rev
Liu Y, Yan T, Qin X, Chen L, Zhang J, Liu Y, Lin Y, Wu F, Mitchell RN, Zhang Z, Zhang J, Wang H, Li C, Wang Y, He B, Zheng Y, Zhang L, Li J, Di K, Wan W, Lin H, Wang J, Hao J, Wang X, Zhao P, Wang X, Pan Y.   +26 more
europepmc   +1 more source

The Miocene Depositional Geological Evolution of Phu Khanh, Nam Con Son and Tu Chinh - Vung May Basins in Vietnam Continental Shelf

, 2018
Trần Thị Dung, Tran Nghi, Nguyen The Hung, Đinh Xuân Thành, Pham Bao Ngoc, Nguyen Thi Kim Tuyen, Tran Thị Thanh Nhan, Nguyễn Thị Huyền Trang   +7 more
openalex   +2 more sources

Depositional characteristics and petroleum geological significance of wetland [PDF]

, 2009
Zhenkui Jin, Gu Junfeng, Nina Su, Zhaofeng Wang, Xiaoping Huang   +4 more
openalex   +1 more source

Nonsilting transport characteristics of coal slurry in a deep underground fluidization conveying pipeline under the action of a guide vane swirler

Deep Underground Science and Engineering, EarlyView.
Aiming at the scientific frontiers of in situ fluidized mining of deep resources, a deep coal fluidized pipeline lifting system based on hydraulic conveying has been proposed. To solve the issue of particle sedimentation of large particles in horizontal connection sections, a solution involving the installation of guide vane‐type swirlers in the ...
Jiusheng Bao, Shaodi Zhao, Yan Yin, Zhongbin Wang, Shuai Liu, Shirong Ge   +5 more
wiley   +1 more source

Late-Quaternary stratigraphy of Baltic Sea basins - a review [PDF]

Bulletin of the Geological Society of Finland, 1992
B. Winterhalter
doaj   +1 more source

Extremely cold ocean temperatures in iron formation brine pools of snowball Earth. [PDF]

Nat Commun
Lu K, Feng L, Mitchell RN, Lechte MA, Hoffman PF.   +4 more
europepmc   +1 more source

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

Structural controls on multi-field coupled ore-bearing hydrothermal migration in Zhugongtang Zn-Pb deposit, Southwestern China. [PDF]

Sci Rep
Zhang Y, Zhou W, Zhang W, Zhang J, Tang C.   +4 more
europepmc   +1 more source

Penetration of Compacted Bentonite into the Discontinuity in the Excavation Damaged Zone of Deposition Hole in the Geological Repository [PDF]

, 2020
Changsoo Lee, Won‐Jin Cho, Jin-Seop Kim, Geon-Young Kim   +3 more
openalex   +1 more source