Zobrazeno 1 - 4
of 4
pro vyhledávání: '"H. H. Helmstaedt"'
Publikováno v:
International Kimberlite Conference Extended Abstracts: 1995.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb7dd81553fbeb9527dc3ad3bb238e46
https://doi.org/10.29173/ikc1762
https://doi.org/10.29173/ikc1762
Autor:
H. H. Helmstaedt, D. J. Schulze
Publikováno v:
Journal of Geophysical Research: Solid Earth. 96:13225-13235
Mid-Tertiary ultramafic microbreccia diatremes from the Navajo volcanic field in the Four Corners area of the Colorado Plateau contain an ultramafic xenoliths suite in which lower-temperature, prograde-metamorphic eclogites are associated with higher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e2bcd0438cca4442eaba1ba419ff658
https://doi.org/10.1029/91jb00284
https://doi.org/10.1029/91jb00284
Autor:
H. H. Helmstaedt, R. Mason
Publikováno v:
Proceedings of the International Conferences on Basement Tectonics ISBN: 9789401047036
Archean lode-gold deposits of the Canadian Shield have commonly been regarded as “structurally controlled,” although the precise nature of such control has been the subject of much debate. Prior to about 1975, these deposits were either considere
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::106e92ef5ce040806d3fe8f45bc76672
https://doi.org/10.1007/978-94-011-1614-5_44
https://doi.org/10.1007/978-94-011-1614-5_44
