Results 121 to 130 of about 2,839,750 (318)

Application of element logging to lithologic identification of key horizons in Sichuan–Chongqing gas provinces

Natural Gas Industry B, 2018
With the popularization and application of fast drilling technology in Sichuan–Chongqing gas provinces, the returned cuttings are fine and even powdered, so the traditional cutting lithology identification methods are not applicable any longer.
Ping Yin, Lin Qi, Qianxia Zhu, Li Luo, Jiaqiong Tang, Cong Ruan, Lei Zhao, Hong Liang   +7 more
doaj   +1 more source

Subsurface Investigations of Cryo‐Hydrogeological Features in a High Arctic Catchment Under Transition

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT In this study, the internal structure and seasonal variations of cryo‐hydrogeological features were investigated in the Fuglebekken catchment, located near the Polish Polar Station Hornsund in Svalbard. Over a few years, rising air temperatures and intensified water circulation have significantly altered the distribution, extent, and state of ...
Wawrzyniak Tomasz, Oryński Szymon, Marciniak Artur, Osuch Marzena   +3 more
wiley   +1 more source

Logging identification of lithology in fine-grained sedimentary rocks based on the FSSA-HKELM model: a case study of the Qingshankou Formation in the Songliao Basin (NE China) [PDF]

Oil Shale
The lithology distribution of fine-grained sedimentary rocks in regional space plays a crucial role in guiding the exploration of oil shale layers. Identifying lithology by conventional logging information is efficient and cost-effective.
Baiqiang Tang, Qingtao Meng, Zhaojun Liu, Fei Hu, Penglin Zhang, Wei Dang, Junxian Wang   +6 more
doaj   +1 more source

Hybrid Lithology Identification Method Based on Isometric Feature Mapping Manifold Learning and Particle Swarm Optimization-Optimized LightGBM

Processes
Accurate identification of lithology in petroleum engineering is very important for oil and gas reservoir evaluation, drilling decisions, and petroleum geological exploration. Using a cross-plot to identify lithology only considers two logging parameters,
Guo Wang, Song Deng, Shuguo Xu, Chaowei Li, Wan Wei, Haolin Zhang, Changsheng Li, Wenhao Gong, Haoyu Pan   +8 more
semanticscholar   +1 more source

Agroforestry and enhanced rock weathering: A dual strategy for sustainable cacao

PLANTS, PEOPLE, PLANET, EarlyView.
Cacao production is both economically vital and environmentally intensive, presenting a major sustainability challenge as a crop largely cultivated by smallholder farmers in climate‐vulnerable regions. This review synthesises evidence that integrating agroforestry with enhanced rock weathering (EW) may significantly reduce emissions from cacao ...
Isabella L. Steeley, Edson S. França, Dimitar Z. Epihov, Noah J. Planavsky, David J. Beerling   +4 more
wiley   +1 more source

A lightweight model hyperparameters searching method for fast, accurate and on-site lithology identification

Journal of Rock Mechanics and Geotechnical Engineering
The efficiency of tunnel excavation, rock strength, stability of surrounding rock, and underground engineering disasters are closely related to lithology.
Zhenhao Xu, Heng Shi, Peng Lin, Shan Li
doaj   +1 more source

Engineered Gravel Trench Hyporheic Exchange to Create Cold‐Water Thermal Refuges

River Research and Applications, EarlyView.
ABSTRACT Warming rivers are driving a loss or fragmentation of cold‐water habitat and providing the impetus to develop proactive thermal management approaches to maintain suitable habitat in rivers. One innovative approach is through the creation of cold‐water thermal refuges during periods of thermal stress for aquatic species.
Kathryn A. Smith, Edmund A. Halfyard, Christa Kelleher, Barret L. Kurylyk   +3 more
wiley   +1 more source

Geologic information from satellite images [PDF]

The author has identified the following significant results. Extracting geologic information from ERTS and Skylab/EREP images is best done by a geologist trained in photointerpretation.
Knepper, D. H., Jr., Lee, K., Sawatzky, D. L.   +2 more
core   +1 more source

Miscellaneous studies [PDF]

, 1958
MISCELLANEOUS STUDIES, which includes the following papers: "Geology of the Area in and Around the Jim Woodruff Reservoir" by Charles W. Hendry, Jr. and J.
Hendry, Charles W., Lund, Ernest H., Lund, Ernest H.   +2 more
core  

Isolation, Insularity and Resilience: A Review of the Geophysical, Socioeconomic, and Environmental Vulnerabilities of Gran Canaria and Lesvos Islands for Policy Interventions to Global Change

Sustainable Development, EarlyView.
ABSTRACT The dynamic nature of small islands being geographically isolated and their perceived connectedness with global networks complicates research attempts to draw general conclusions on whether insularity leads to marginalization or strengthens their resilience for sustainable development.
Toheeb Lekan Jolaosho, Mazen Marouani, Takwa Boughanmi   +2 more
wiley   +1 more source