Results 91 to 100 of about 11,832 (314)

Role of sentinel-2 remotely sensed data in assisting stratigraphic subdivision of a Paleogene carbonate sequence, Jabal Hafit, UAE-Oman

Egyptian Journal of Remote Sensing and Space Sciences
SENTINEL-2 remote sensing data for Jabal Hafit mountain, south of Al Ain, UAE, were obtained for the purpose of mapping the stratigraphic units in this monotonous carbonate-dominant Lower Eocene to Oligocene sequence.
Osman Abdelghany, Abdel-Rahman Fowler, Karim Abdelmalik, Abdelaziz Al Azzani, Mahmoud Abu Saima   +4 more
doaj   +1 more source

Assessment of automated stratigraphic interpretations of boreholes with geology-informed metrics

Computers & Geosciences
Stratigraphic interpretation of borehole data is a fundamental aspect of subsurface geological models, providing critical insights into the distribution of stratigraphic units. However, expert interpretation of all available borehole data is impractical for large-scale regional mapping involving thousands of boreholes.
Sebastián Garzón, Willem Dabekaussen, Freek S. Busschers, Eva De Boever, Siamak Mehrkanoon, Derek Karssenberg   +5 more
openaire   +2 more sources

Real‐time lithology identification while drilling based on drill cuttings image analysis with ensemble learning

Deep Underground Science and Engineering, EarlyView.
A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li, Ting Ren, Ningping Yao, Jon Roberts, Haitao Song, Zhongbei Li, Xueqiu He, Liang Zhao   +7 more
wiley   +1 more source

Present-day stress orientations and tectonic provinces of the NW Borneo collisional margin [PDF]

, 2010
Extent: 15p.Borehole failure observed on image and dipmeter logs from 55 petroleum wells across the NW Borneo collisional margin were used to determine maximum horizontal stress (σH) orientations; combined with seismic and outcrop data, they define seven
Richard R. Hillis, Rosalind C. King, Mark R. P. Tingay, Christopher K. Morley, Hillis, R., James Clark, Tingay, Mark, Tingay, M., King, R., Clark, J., Morley, C.   +10 more
core   +2 more sources

Contributions to the Geology of Brisbane. No. 1. Local Applications of the Standard Stratigraphical Nomenclature.

The Proceedings of the Royal Society of Queensland, 1950
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Bryan, Walter Haywood, Jones, Owen, (Gamekeeper)   +1 more
openaire   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Contributions to Geology, 1944 [PDF]

, 1944
"Contributions to Geology," including shorter papers, have been issued by the Bureau of Economic Geology since 1928. Each volume of the "Contributions" bears a bulletin number and is thus a part of The University of Texas series ...
University of Texas at Austin. Bureau of Economic Geology
core   +1 more source

Sequence-stratigraphic model of the West Siberia lower cretaceous

Georesursy
Apparently, conceptual base of the sequence stratigraphy is one of the most acknowledged methodologies in the geological world at the present time for the sedimentary strata structure prediction.
V. A. Zhemchugova, V. V. Rybalchenko, T. A. Shardanova   +2 more
doaj   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Integrated stratigraphy of the Waitakian-Otaian Stage boundary stratotype, Early Miocene, New Zealand [PDF]

, 1999
The base of the type section of the Otaian Stage at Bluecliffs, South Canterbury, is recognised as the stratotype for the boundary between the Waitakian and Otaian Stages.
G. H. Scott, Mumme, T.C., P. J. J. Kamp, T. C. Mumme, Graham, I.J., A. R. Edwards, G. S. Wilson, Scott, G.H., I. J. Graham, Wilson, Gary S., Morgans, Hugh E.G., Kamp, Peter J.J., Wilson, G.J., G. J. Wilson, H. E. G. Morgans, Edwards, A.R.   +15 more
core   +1 more source