Results 31 to 40 of about 395,685 (399)

Driving Multi‐Step Regioselectivity in On‐Surface Polymer Synthesis by Molecular Coverage

open access: yesAngewandte Chemie, EarlyView.
Regioselective polymerization of dicyclopentaanthracene on Au(111) can be controlled by tuning molecular coverage. Low coverage yields 1D polymers, medium coverage produces quasi‐1D staircase polymers, and higher coverage drives 2D porous networks.
Kalyan Biswas   +15 more
wiley   +2 more sources

The Effect of Obliquity of Slip in Normal Faults on Distribution of Open Fractures

open access: yesFrontiers in Earth Science, 2019
Close to surface, cohesive rocks fail in extension, which results in open fractures that can be several tens of meters wide, so-called massively dilatant faults. These open fractures make fault slip analysis in rifts challenging, as kinematic markers are
Christoph von Hagke   +5 more
doaj   +1 more source

Emplacement of sandstone intrusions during contractional tectonics [PDF]

open access: yes, 2016
Acknowledgments We acknowledge the support of sponsoring companies of Phase 3 of the Sand Injection Research Group (SIRG). We are very grateful to John Waldron and Jessica Ross for the constructive reviews of the manuscript.
Alsop, G. Ian   +4 more
core   +1 more source

Occurrence characteristics and main control mechanism of trace elements in Early Permian coal in the southern margin of North China Plate

open access: yes地质科技通报, 2023
Objective The study focuses on the development of critical elements in coal as a new area of mineral resource exploration. Methods Various analytical methods including X-ray diffraction, X-ray fluorescence spectrum, and inductively coupled plasma-mass ...
Duoen Yuan   +4 more
doaj   +1 more source

Tube coalescence in the Jingfudong lava tube and implications for lava flow hazard of Tengchong volcanism

open access: yesInternational Journal of Speleology, 2016
Tube-fed structure occurs as a general phenomenon in Tengchong basic lavas, such as lava tubes, lava plugs and tube-related collapse depressions. We deduced the development of Laoguipo lava flows, which is the longest lava tube (Jingfudong lava tube ...
Zhengquan Chen   +4 more
doaj   +1 more source

Accelerated Movements of Xiaomojiu Landslide Observed with SBAS-InSAR and Three-Dimensional Measurements, Upper Jinsha River, Eastern Tibet

open access: yesApplied Sciences, 2022
Many ancient landslides in the upper reaches of the Jinsha River seriously threaten the safety of residents on both sides of the river. The river erosion and groundwater infiltration have greatly reduced the stability of the ancient landslides along the ...
Xinghong Liu, Xin Yao, Jiaming Yao
doaj   +1 more source

The evolution of plate tectonics

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2018
To understand how plate tectonics became Earth's dominant mode of convection, we need to address three related problems. (i) What was Earth's tectonic regime before the present episode of plate tectonics began?
R. Stern
semanticscholar   +1 more source

Slip inversion along inner fore-arc faults, eastern Tohoku, Japan [PDF]

open access: yes, 2017
The kinematics of deformation in the overriding plate of convergent margins may vary across timescales ranging from a single seismic cycle to many millions of years.
Fisher, Donald M.   +4 more
core   +2 more sources

Observing eruptions of gas-rich compressible magmas from space

open access: yesNature Communications, 2016
Satellite observations are an important tool in volcano monitoring, but observations such as ground deformation and gas emissions are treated independently. Here, the authors present a model coupling them through their link to magma volatile contents and
Brendan McCormick Kilbride   +2 more
doaj   +1 more source

Landslide Detection and Mapping Based on SBAS-InSAR and PS-InSAR: A Case Study in Gongjue County, Tibet, China

open access: yesRemote Sensing, 2022
The rock mass along the Jinsha River is relatively broken under complex geological action. Many ancient landslides were distributed along the Jinsha River in Gongjue County, which is very dangerous under the action of gravity, tectonic stress and river ...
Jiaming Yao, Xin Yao, Xinghong Liu
doaj   +1 more source

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