Results 81 to 90 of about 8,285 (233)
Identification of geostructures of continental crust particularly as they relate to mineral resource evaluation [PDF]
The author has identified the following significant results. New mineral deposits have recently been discovered in eastern Alaska through application of a hypothesis very similar to one developed in interpretation of Nimbus and ERTS-1 imagery in this ...
Gryc, G., Lathram, E. H.
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Magnetic and gravity anomalies in the Americas [PDF]
The cleaning and magnetic tape storage of spherical Earth processing programs are reported. These programs include: NVERTSM which inverts total or vector magnetic anomaly data on a distribution of point dipoles in spherical coordinates; SMFLD which ...
Braile, L. W. +2 more
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Zircon U-Pb dating of Mesozoic volcanic and tectonic events in northwest Palmer Land and southwest Graham Land, Antarctica [PDF]
, 2009 New whole rock Rb-Sr and zircon U-Pb geochronological data and Sm-Nd isotopic data are presented from the central magmatic arc domain of the Antarctic Peninsula in the area of northwest Palmer Land and southwest Graham Land, Rb-Sr isochrons indicate an ...
Flowerdew, Michael +5 more
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Some Problemes on the Aeromagnetic Survey
Journal of the Japanese Association for Petroleum Technology, 1968 Abstract In this paper, the problemes on the magnetic modelling of geological structure and the reduction of magnetic dato are mainly treated. (1) The magnetic compartment in the basement complex, uplift and/or Subsidence of the base ment surface, the sills and the intrusives in the sediment are the cansative bodies of the magnetic anomalies, but the ...
openaire +2 more sources
Merging aeromagnetic data collected at different levels: the GEOMAUD survey
Annals of Geophysics, 1999 As part of the German GEOMAUD-expedition an aeromagnetic survey was carried out in Central Queen Maud Land. The helicopter-borne survey was designed in a conventional form of a regional survey with a spacing of profile-lines of 4.4 km.
D. Damaske
doaj +1 more source
Study of gravity and magnetic anomalies using MAGSAT data [PDF]
The results of modeling satellite-elevation magnetic and gravity data using the constraints imposed by near surface data and seismic evidence shows that the magnetic minimum can be accounted for by either an intracrustal lithologic variation or by an ...
Braile, L. W. +2 more
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Use of satellite pictures for determining major shield fractures relevant for ore prospecting, northern Finland [PDF]
The author has identified the following significant results. A combined analysis of LANDSAT 1 imagery, aeromagnetic and other maps, and aerial photos has revealed a dense network of bedrock fractures in northern Finland.
Aarnisalo, J., Tuominen, H. V.
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Записки Горного институтаThe paper focuses on the technique and results of an aeromagnetic survey conducted using a fixed-wing unmanned aerial system (UAS) in East Antarctica at the Bunger Hills and Highjump Archipelago (Wilkes Land) during the 69th Russian Antarctic Expedition.
Aleksandr E. Simakov +5 more
doaj
Structural lineaments of Gaspe from ERTS imagery [PDF]
A test study was conducted to assess the value of ERTS images for mapping geologic features of the Gaspe Peninsula, Quebec. The specific objectives of the study were: 1) to ascertain the best procedure to follow in order to obtain valuable geologic data ...
Steffensen, R.
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Applied SciencesThe Dongzhongla deposit is a skarn-type lead–zinc ore deposit located in the eastern segment of the Gangdese metallogenic belt, situated in the Xizang province, China.
Ning Lu +7 more
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