Results 21 to 30 of about 182,784 (297)

Structural history of the southwestern corner of the Kaapvaal Craton and the adjacent Namaqua realm: new observations and a reappraisal [PDF]

open access: yes, 1991
The rocks along the southwestern margin of the Kaapvaal Craton were deformed up to 7 times during the Early to Middle Proterozoic. The oldest deformation D1 is recorded in the N-S-trending Uitkoms cataclasite of pre-Makganyene age (>2.24 Ga) on the ...
Altermann, Wladyslaw, Hälbich, Ingo W.
core   +1 more source

The model of surface subsidence process at subsidence through formation [PDF]

open access: yes, 2003
The character of surface subsidence is different and has its peculiarities at different stages of mining operations. The process of surface subsidence is especially different in the initial period of mining lava comparing with other stages of mining ...
Кучин, Александр Сергеевич   +2 more
core   +1 more source

Study on the Ground Movement in an Open-Pit Mine in the Case of Combined Surface and Underground Mining

open access: yesAdvances in Materials Science and Engineering, 2020
The combined surface and underground mining method is typically used in an open-pit mine for better production and profits. However, the improved scale of mining operations at the combined mining conditions results in even more intensive strata movement ...
Zhenwei Wang, Gaofeng Song, Kuo Ding
doaj   +1 more source

Fracture mechanism of roof key strata in Dongjiahe coal mine using microseismic moment tensor

open access: yesGeomatics, Natural Hazards & Risk, 2021
Response characteristics of key strata during the periodic weighting process in Dongjiahe coal mine were investigated using micro-seismic (MS) monitoring. Fracture types of key strata were identified through the moment tensor inversion. Finally, fracture
Ke Ma   +6 more
doaj   +1 more source

Study on overburden damage and prevention of runoff disaster in multiseam mining of gully region

open access: yesMeitan kexue jishu, 2023
Multi-seam mining in gully region has resulted in serious and complex chain disasters, including fissure development, mountain landslides, river blockage, and intensified water inflow.
Yilong LIU   +5 more
doaj   +1 more source

Study On The Law Of Ground Strata Subsidence And Movement Induced By Caving Mining Of Slowly Inclined Large And Thick Ore Body

open access: yesE3S Web of Conferences, 2018
Taking the Western District of Chengchao Iron Mine as engineering background, based on the GPS monitoring data of nearly 8 years and the record of the ground surface movement, the law of ground strata subsidence and movement is studied.
Teng Li, Jianxin Fu, Weidong Song
doaj   +1 more source

On strata damage and stress disturbance induced by coal mining based on physical similarity simulation experiments

open access: yesScientific Reports, 2023
Extensive studies have been conducted on the movement of overlying strata when a single coal seam is mined. However, structural characteristics and associated stress field variation of the overlying strata over multiple coal seam mining remain unclear ...
Yi Yang   +3 more
doaj   +1 more source

The structural and diagenetic evolution of injected sandstones: examples from the Kimmeridgian of NE Scotland [PDF]

open access: yes, 2003
: Injected sandstones occurring in the Kimmeridgian of NE Scotland along the bounding Great Glen and Helmsdale faults formed when basinal fluids moved upward along the fault zones, fluidizing Oxfordian sands encountered at shallow depth and injecting ...
Duranti, D.   +4 more
core   +2 more sources

Effects of forest fragmentation on the vertical stratification of neotropical bats [PDF]

open access: yes, 2020
Vertical stratification is a key component of the biological complexity of rainforests. Understanding community- and species-level responses to disturbance across forest strata is paramount for evidence-based conservation and management.
Farneda, F   +4 more
core   +4 more sources

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