Results 21 to 30 of about 290,427 (353)

Integrated evaluation of the geology, aerogammaspectrometry and aeromagnetometry of the Sul-Riograndense Shield, southernmost Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2016
An integrated evaluation of geology, aerogammaspectrometry and aeromagnetometry of the Sul-Riograndense Shield is permitted by the advanced stage of understanding of the geology and geochronology of the southern Brazilian Shield and a 2010 airborne ...
LÉO A. HARTMANN   +2 more
doaj   +1 more source

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

Typical misinterpretations and scientific concepts in well-logging geologic studies

open access: yesNatural Gas Industry B, 2023
The method and theoretical system of well logging geology have been widely used in the fields of basic geology, petroleum geology and engineering geology, but the different response sensitivity of different well logging series to geological information ...
Jin Lai   +7 more
doaj  

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

Ocean acidification in the aftermath of the Marinoan glaciation [PDF]

open access: yes, 2014
Boron isotope patterns preserved in cap carbonates deposited in the aftermath of the younger Cryogenian (Marinoan, ca. 635 Ma) glaciation confirm a temporary ocean acidification event on the continental margin of the southern Congo craton, Namibia.
Fallick, Anthony E.   +3 more
core   +1 more source

Lead (Pb) Isotope Baselines for Studies of Ancient Human Migration and Trade in the Maya Region. [PDF]

open access: yesPLoS ONE, 2016
We examined the potential use of lead (Pb) isotopes to source archaeological materials from the Maya region of Mesoamerica. The main objectives were to determine if: 1) geologic terrains throughout the Maya area exhibit distinct lead isotope ratios ...
Ashley E Sharpe   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy