Results 81 to 90 of about 1,800 (220)
Shaanxi province is rich in coal resources and is one of the main coal-producing provinces in China, with a coal production of 746 million tons in 2022. Due to the obvious differences in geological and hydrogeological conditions in the coal mining areas ...
Shuning DONG +7 more
doaj +1 more source
Based on the engineering background of the Daliuta mining area, the distribution of fractures and movement of water within weakly cemented overlying strata were studied with a physical simulation of liquid–solid coupling and a COMSOL numerical simulation test.
Yangyang Li +7 more
wiley +1 more source
Rediscovery of Ooline, Cadellia pentastylis, near Gunnedah : notes on the habitat and ecology of this dry rainforest tree [PDF]
Cadellia pentastylis F.Muell., (family Surianaceae), a dry rainforest tree with a conservation listing of Vulnerable at state and national levels, was first collected from the Gunnedah area by the botanical collector J.L. Boorman in 1907.
Curran, Sandra R., Curran, Timothy J.
core
Revision of Sagenopteris (Caytoniales): a major lineage of the Mesozoic seed plants
Abstract Sagenopteris is the most common fossil organ attributed to Caytoniales and is represented by compound leaves having several (usually four) lanceolate leaflets in pseudo‐palmate arrangement. Since Presl's description of Sagenopteris in 1838, at least 82 species have been identified worldwide.
Yuanyuan Xu +5 more
wiley +1 more source
Report on the geochemistry and geochronology of the tuff beds from the Bazhenovo black shales, West Siberian Basin. Geochemical discrimination indicates an affinity with volcanic arc basalts. New constraints on the J–K boundary in the Boreal Realm using high‐precision U–Pb data.
Timur Bulatov +4 more
wiley +1 more source
Mechanism and control of strong rock pressure in the gully area under compound key strata
In view of the problem strong rock pressure is easy to occur in coal seam mining in western gully terrain. Through similar simulation, theoretical calculation and analysis, numerical simulation and field measurement, the mechanism of strong rock pressure in the gully area was analyzed.
Xingping Lai +7 more
wiley +1 more source
The productive potential of coalbed methane projects is controlled by pore and fissure characteristics, which are intrinsically related to coal petrology. This work attempts to identify the influence of petrographic factors on the development of pore and
Sandong Zhou +4 more
doaj +1 more source
Uplift, Climate and Biotic Changes at the Eocene-Oligocene Transition in Southeast Tibet [PDF]
The uplift history of southeastern Tibet is crucial to understanding processes driving the tectonic evolution of the Tibetan Plateau and surrounding areas.
Deng, Cheng-Long +15 more
core +3 more sources
The siliciclastic lower Nanaimo Group records the initiation and depositional evolution of a forearc basin (Georgia Basin, Canada). Our research revises the traditional lithostratigraphic framework and proposes a new stratigraphic framework for the lower Nanaimo Group.
Kristian Girotto +5 more
wiley +1 more source
Groundwater renewal capacity of Jurassic coalfields in northern Ordos Basin
With the westward shift of the focus of coal mining, the Jurassic coalfield in the northern Ordos Basin has become an important energy security base in China.
Jian YANG, Yue PU, Hui LI
doaj +1 more source

