Results 121 to 130 of about 1,794 (218)

An investigation of the lower Permian middle Ecca ammonite locality at Alleta, Natal [PDF]

open access: yes, 1977
Main articeThe problematic ammonite Paraceltites bowdeni Teichert & Rilett has been recorded only from the Alleta iron-ore mine near Dundee in Natal.
McLachlan, I. R.
core  

Brick-pits of Leicestershire [PDF]

open access: yes, 2014
Leicester City once had thriving extractive industries within its limits, but these have changed over the years as workings have developed more within the surrounding county.
Ambrose, Keith, Ford, Trevor D.
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Chromium in Chinese coals: geochemistry and environmental impacts associated with coal-fired power plants. [PDF]

open access: yesEnviron Geochem Health, 2023
Tang Q   +8 more
europepmc   +1 more source

Underground mining of aggregates. Main report [PDF]

open access: yes, 2010
This report examines the economic feasibility of underground mining for crushed rock aggregates in the UK, but particularly in the London, South East and East of England regions (the South East area of England).
Brown, Teresa J.   +7 more
core  

Research on mechanism and risk assessment of water and sand outburst in weakly cemented rock layers of Jurassic coalfields

open access: yesMeikuang Anquan
Due to the relatively late coal-forming period in the Jurassic coalfields in western China, the rock characteristics often exhibit poor cementation, low strength, and easy softening and collapse in contact with water, which leads to the occurrence of water and sand outburst events in weakly cemented rock layers during mining. Therefore, identifying the
Jiangwei FAN   +6 more
openaire   +1 more source

Research on the prediction of the height of water-conducting fissure zones in a Jurassic coalfield based on AdaBoost-WOA-BPNN

open access: yes
Abstract Understanding the laws behind the development of water-conducting fissure zones in the Huanglong Jurassic coalfield and accurately predicting the height of these water-conducting fissures are crucial to prevent and control the water damage in the overlying thick sandstone aquifer of the Luohe Formation.
Enke Hou   +5 more
openaire   +1 more source

Engineering geology of British rocks and soils : Lias Group [PDF]

open access: yes, 2012
The report begins with an introduction and a detailed modern assessment of the geology of the Lias Group in terms of both stratigraphy and lithology. The modern lithostratigraphy is placed in the context of the old, and sometimes more familiar, usage ...
Barron, M.   +8 more
core  

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