Zobrazeno 1 - 10
of 12
pro vyhledávání: '"J. C. Rucklidge"'
Publikováno v:
AIP Conference Proceedings.
Accelerator mass spectrometry has been applied, in a very few laboratories, to the in-situ analysis of trace elements in solids such as metals, semiconductors and minerals. The latter have largely been electrically-conducting phases with minimum grai
Autor:
J. C. Rucklidge
Publikováno v:
X-Ray Spectrometry. 7:57-62
Publikováno v:
Mineralogical Magazine. 45:211-218
Whole-rock, minor element, rare earth, and electron microprobe data are presented for basaltic lavas from the western Kangerdlugssuaq area of East Green- land. Samples were obtained from Professor W. A. Deer's 1936 collection at Triangular Nunataks a
Autor:
G. C. Wilson, J. C. Rucklidge
Publikováno v:
Mineralogy and Petrology. 36:219-239
This paper describes mineralogical and geological aspects of the Owl Creek and Hoyle Pond gold mines, located in Archean metasediments and metavolcanics in the Abitibi greenstone belt in northern Ontario, Canada. The occurrence of “invisible gold
Publikováno v:
Canadian Journal of Earth Sciences. 8:144-149
The degree of preferred orientation of hornblende in two boudinage structures is analyzed by means of an X-ray texture goniometer. Relative values of reflected intensity for {110} are plotted on the stereographic net, and contoured at convenient inte
Publikováno v:
Economic Geology. 62:502-516
The Lamaque and Sigma ore zones are composed of a multiplicity of gold-bearing quartz veins extending vertically to depths greater than 4,000 feet. The mines are about 2,500 feet apart horizontally and they are separated by a steeply dipping fault zo
Autor:
J. Zussman, J. C. Rucklidge
Publikováno v:
Acta Crystallographica. 19:381-389
Publikováno v:
Canadian Journal of Earth Sciences. 6:340-344
In a search for Tertiary dikes, rocks were collected along part of the east coast of Labrador. K–Ar age determinations on some of these rocks suggest that the Grenville Front passes out to sea along the north side of Groswater Bay.
Autor:
J. C. Rucklidge, W. A. Elders
Publikováno v:
The Journal of Geology. 77:240-244
Excellent exposures along the coast of Labrador for 150 km. reveal a consistent pattern of thick gabbro sheets overlying migmatic granite gneisses. The relationship between the two rocks is complex, and in many places each appears to have intruded th
Publikováno v:
Nature. 212:603-604
DURING the summer of 1965 the Oxford University Expedition to East Greenland visited the north-eastern section of the extensive area of Tertiary lavas which stretches northwards from Kangerdlugssuaq to the Scoresby Sund fjord system. This communicati