Results 21 to 30 of about 210,162 (311)

Ion Simionescu – Leader and Trailblazer at the University of Iași [PDF]

open access: yesMemoirs of the Scientific Sections of the Romanian Academy, 2023
The paper synthetically presents some of the leadership positions and dignities assumed by Professor Ion Simionescu, as follows: member of the Council of the Faculty of Sciences, head of the Department of Geology-Palaeontology in the Faculty of Sciences,
Gabriel Ovidiu Iancu
doaj  

The Vibration Characteristics of Ground of Rock Blasting in Silt-Rock Strata

open access: yesShock and Vibration, 2021
As the shield section passes through the silt-rock strata, the rock stratum of the tunnel section has to be blasted into blocks in advance, and the diameter of the blocks should be less than 30 cm after breaking, and then, the blocks could smoothly enter
Tao Yin   +4 more
doaj   +1 more source

Patterns of Late Cenozoic exhumation deduced from apatite and zircon U-He ages from Fiordland, New Zealand [PDF]

open access: yes, 2005
New apatite and zircon (U-Th)/He ages from the Fiordland region of New Zealand's South Island expand on earlier results and provide new constraints on patterns of Late Cenozoic exhumation and cooling across this region.
Gurnis, M.   +3 more
core   +2 more sources

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

Application of palynological data to the chronology of the Palaeogene lava fields of the British Province: implications for magmatic stratigraphy [PDF]

open access: yes, 1997
New high-precision ages, determined from palynomorph assemblages within intercalated sedimentary deposits, are presented for the Palaeogene lava fields (Skye, Mull and Antrim) of the British Province. These data reveal very rapid averaged eruption rates (
Bell, B.R., Jolley, D.W.
core   +1 more source

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