Results 31 to 40 of about 6,192 (298)

Regional Land Subsidence Analysis in Eastern Beijing Plain by InSAR Time Series and Wavelet Transforms

open access: yesRemote Sensing, 2018
Land subsidence is the disaster phenomenon of environmental geology with regionally surface altitude lowering caused by the natural or man-made factors.
Mingliang Gao   +8 more
doaj   +1 more source

Challenges in Tunneling in the Himalayas: A Survey of Several Prominent Excavation Projects in the Himalayan Mountain Range of South Asia

open access: yesGeotechnics, 2022
The Himalayas are one of the most unstable regions in the world. Underground excavations are very challenging in this region due to the fragile geology, tectonic activities and complex geological structures.
Diwakar KC   +4 more
doaj   +1 more source

Geology of the Souter Head subvolcanic complex, Aberdeenshire, Scotland: an Ordovician granite-related Mo–(Bi–As–Au) system [PDF]

open access: yesEarth and Environmental Science Transactions of the Royal Society of Edinburgh, 2020
ABSTRACTAn Ordovician subvolcanic intrusive complex hosted by Neoproterozoic metasediments crops out at Souter Head about 6km S of Aberdeen, Scotland. The complex is composed mainly of two-mica red granite and breccia with minor dykes of pegmatite, quartz porphyry, felsite and dolerite, and widespread quartz veining, hydrothermal alteration and minor ...
Clive M. RICE, Darren F. MARK
openaire   +1 more source

Type selection, structural calculation and construction of anchorage in Sichuan bank of Sichuan Kahalo Jinsha River Bridge

open access: yesAdvances in Bridge Engineering, 2023
Sichuan kahalo Jinsha River Bridge is a suspension bridge with a main span of 1030 m, and the anchorages on both sides are gravity anchorages. In order to adapt to special terrain and geological conditions, anchorage of Sichuan bank pioneered the use of ...
Qiyu Tao, Qigang Xu, Li Chen, Rui Gu
doaj   +1 more source

Land uplift linked to managed aquifer recharge in the Perth Basin, Australia

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2021
While the link between groundwater extraction and land subsidence is well documented, observations of land uplift associated with groundwater replenishment are less so.
A.L. Parker   +5 more
doaj   +1 more source

Geochemistry of trace and rare earth elements of the productive intrusions in the Kuh-Kapout porphyry copper deposit, Urumieh–Dokhtar magmatic arc [PDF]

open access: yesپترولوژی
IntroductionThe Cenozoic Urumieh-Dokhtar magmatic arc has characteristics similar to those of Andean-type magmatic arcs. Various types of magmatism occurred in this arc including calc-alkaline and K-rich calc-alkaline magmatism and less of them alkaline ...
Alireza Zarasvandi   +5 more
doaj   +1 more source

Automated collection of single species of microfossils using a deep learning–micromanipulator system

open access: yesProgress in Earth and Planetary Science, 2020
For geochemical analysis such as stable isotope ratio, radiocarbon dating and minor element analysis for a single species of microfossils, a large number of specimens, is required. Collecting specimens one by one under a microscope requires enormous time
Takuya Itaki   +5 more
doaj   +1 more source

Country Studies: A Team with No Coach? Problems of Composition, Methodology and Development

open access: yesКонтуры глобальных трансформаций: политика, экономика, право, 2022
The article raises and discusses six “provocative” questions about country studies in order to review, once more, its headings, facilities and, above all, its problems.
A. I. Treivish
doaj   +1 more source

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

open access: yesThe Anatomical Record, EarlyView.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

Functional models from limited data: A parametric and multimodal approach to anatomy and 3D kinematics of feeding in basking sharks (Cetorhinus maximus)

open access: yesThe Anatomical Record, EarlyView.
Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li   +12 more
wiley   +1 more source

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