Results 21 to 30 of about 306,510 (300)

Spatial distribution of pingos in northern Asia [PDF]

open access: yesThe Cryosphere, 2011
Pingos are prominent periglacial landforms in vast regions of the Arctic and Subarctic. They are indicators of modern and past conditions of permafrost, surface geology, hydrology and climate.
G. Grosse, B. M. Jones
doaj   +1 more source

Harmful Effects of Lead on Learning

open access: yesPediatric Neurology Briefs, 1987
Members of the Depts. Community Medicine, Education, Geology, and Med. Statistics Unit, Univ. Edinburgh, have investigated the effect of blood-lead on cognitive ability and educational attainment in a sample of 855 boys and girls aged 6-9 years from 18 ...
J Gordon Millichap
doaj   +1 more source

Pictorial Representations in Geology Textbooks of High School: a Study in the Scope of the Paleomagnetism

open access: yesRevista Brasileira de Pesquisa em Educação em Ciências, 2017
The pictorial representations (PR) are fundamental in textbooks, particularly to those regarding the Sciences education. Their efficiency and value for the teaching and learning processes must be focus not in their quantity, but in the way they are ...
Gina Pereira Correia   +1 more
doaj   +1 more source

Effect of the Initial Support of the Tunnel on the Characteristics of Rockburst: Case Study and Mechanism Analysis

open access: yesAdvances in Civil Engineering, 2022
Rockburst is still a stubborn disease in the field of engineering geology. The present research pays more attention to the influence of geological conditions on rockburst and less to the influence of type and stiffness of engineering support on rockburst.
Chunchi Ma   +4 more
doaj   +1 more source

Temporal relations between mineral deposits and global tectonic cycles [PDF]

open access: yes, 2013
Natural Environment Research Council (grant NE/J021822/1) supported this research.Mineral deposits are heterogeneously distributed in both space and time, with variations reflecting tectonic setting, evolving environmental conditions, as in the ...
Cawood, Peter Anthony   +1 more
core   +2 more sources

Possible Role of the Main Makran Fault in the Collapse of the Ancient Civilizations Along the Makran Shoreline [PDF]

open access: yesIranian Journal of Archaeological Studies, 2021
The Makran is the location of ancient civilizations and one of the most important tsunamigenic zones in the world.Historical and instrumental records indicate the occurrence of large earthquakes on the main Makran fault and theresulting tsunamis but the ...
Abdolreza Partabian
doaj   +1 more source

Applications of Lead Isotopes to Ore Geology, Metallogenesis and Exploration

open access: yes, 2023
AbstractAlthough lead isotopes are most commonly used to date geological events, including mineralizing events, they also can provide information on many aspects of metallogeny and can be directly used in mineral exploration. Lead isotope data are generally reported as ratios of radiogenic isotopes normalized to the non-radiogenic isotope204Pb (e.g ...
David L. Huston, David C. Champion
openaire   +1 more source

Structural Properties of Syngenetic Ice-Rich Permafrost, as Revealed by Archaeological Investigation of the Yana Site Complex (Arctic East Siberia, Russia): Implications for Quaternary Science

open access: yesFrontiers in Earth Science, 2022
Ice-rich syncryogenic (termed “Ice Complex”) deposits are common in northern East Siberia and constitute the most important feature of the Quaternary geology of the region.
Vladimir V. Pitulko, Elena Y. Pavlova
doaj   +1 more source

The Sanford Underground Research Facility at Homestake

open access: yes, 2014
The former Homestake gold mine in Lead, South Dakota is being transformed into a dedicated laboratory to pursue underground research in rare-process physics, as well as offering research opportunities in other disciplines such as biology, geology and ...
Heise, J.
core   +2 more sources

To the problem of literal symbolization of hole drilling parameters

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2015
An approach to using of different literal symbolizations of parameters, functional ties and calculations in technical prjblems of geology exploration wells drilling is briefly shown.
L. D. Bazanov
doaj   +1 more source

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