Results 51 to 60 of about 4,773 (290)

A study of radioactive elements of various rocks in Pattani Province with gamma ray spectrometer [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2002
The radioactivity of the three elements, potassium, uranium and thorium, in rocks of various types in Pattani Province was investigated by using a gamma ray spectrometer.
Kaewtubtim, P., Changkean, S., Hmsuree, H.   +2 more
doaj  

Extreme fire severity interacts with seed traits to moderate post‐fire species assemblages

American Journal of Botany, EarlyView.
Abstract Premise Climate change is globally pushing fire regimes to new extremes, with unprecedented large‐scale severe fires. Persistent soil seed banks are a key mechanism for plant species recovery after fires, but extreme fire severity may generate soil temperatures beyond thresholds seeds are adapted to.
Michi Sano, Ryan Tangney, Alexandria Thomsen, Mark K. J. Ooi   +3 more
wiley   +1 more source

Repeating Low Frequency Icequakes in the Mont‐Blanc Massif Triggered by Snowfalls

Journal of Geophysical Research: Earth Surface, Volume 127, Issue 12, December 2022., 2022
Abstract Deformation mechanisms of glaciers are highly sensitive to basal temperature; the motion of temperate glaciers is dominated by basal slip while cold‐based glaciers deform mainly by internal creep. While basal slip is usually aseismic, unstable slip sometimes occurs and can be detected by seismometers.
Agnès Helmstetter
wiley   +1 more source

Effects of early intense bombardment on megaregolith evolution and on lunar (and planetary) surface samples [PDF]

, 2020
Impact rates in the first 500 Myr of the solar system are critical to an understanding of lunar geological history, but they have been controversial. The widely accepted, post-Apollo paradigm of early lunar impact cratering (ca. 1975-2014) proposed very low or negligible impact cratering in the period from accretion (>4.4 Ga) to about 4.0 Ga ago ...
arxiv   +1 more source

Diverse Deformation Mechanisms and Lithologic Controls in an Active Orogenic Wedge: Structural Geology and Thermochronometry of the Eastern Greater Caucasus

Tectonics, Volume 41, Issue 12, December 2022., 2022
Abstract Orogenic wedges are common at convergent plate margins and deform internally to maintain a self‐similar geometry during growth. New structural mapping and thermochronometry data illustrate that the eastern Greater Caucasus mountain range of western Asia undergoes deformation via distinct mechanisms that correspond with contrasting lithologies ...
A. R. Tye, N. A. Niemi, E. Cowgill, F. A. Kadirov, G. R. Babayev   +4 more
wiley   +1 more source

The Use of Andesite Rocks in the Hindu-Buddhist Kingdoms in Indonesia

Yupa: Historical Studies Journal
This research aims to explain the reasons for choosing andesite igneous rock as building material from Hindu-Buddhist kingdoms. The research method in this article uses four stages of historical research, namely; heuristic techniques, source criticism ...
Yulian Saputra, Muhammad Azmi, Kurniawan Kurniawan   +2 more
doaj   +1 more source

Roadmap to Nanomedical Applications: Nanotoxicology and In Vitro Guidelines for Lanthanide‐Doped Luminescence Nanothermometers

Advanced NanoBiomed Research, EarlyView.
Lanthanide‐based luminescence nanothermometry holds multifaceted potential for nanomedical applications, yet despite significant research advances, clinical translation of the engineered nanomaterials is still controversial and widely disputed. This is related to crucial nanotoxicological aspects that must be addressed at the preclinical level ...
Simona Premcheska, Andre G. Skirtach, Anna M. Kaczmarek   +2 more
wiley   +1 more source

Key Strata Inducing Dynamic Disasters Based on Energy Condition: Criterion and Application

Geofluids, 2021
The thick and hard rock strata (THRS) exist widely in coal measure strata, which control the movements of overlying rock strata in stopes. When THRS break, great energy is released, which could aggravate the risks of coal and gas outburst, rock burst ...
Chao Xu, Gang Yang, Haoshi Sun, Liangliang Qin, Kai Wang, Bo Ren, Zhijie Wen   +6 more
doaj   +1 more source

Bending performance changes during prolonged canine eruption in saber‐toothed carnivores: A case study of Smilodon fatalis

The Anatomical Record, EarlyView.
Abstract The canine of saber‐toothed predators represents one of the most specialized dental structures known. Hypotheses about the function of hypertrophied canines range from display and conspecific interaction, soft food processing, to active prey acquisition.
Z. Jack Tseng
wiley   +1 more source

Identification of potential groundwater sources using Electrical Resistivity Imaging (ERI) method in Jambu Lawar, Machang, Kelantan [PDF]

BIO Web of Conferences
The study area is primarily composed of volcanic rock and plain quaternary sediment. Extrusive and intrusive rocks are the two varieties of igneous rock that have been found. In the examined location, igneous intrusive rock, specifically biotite granite,
Sulaiman Noorzamzarina, Mohamad Rapi Nur Azlin, Sulaiman Nursufiah, Sulaiman Fazrul Razman   +3 more
doaj   +1 more source