Zobrazeno 1 - 8
of 8
pro vyhledávání: '"F. Ivor Roberts"'
Autor:
Colin R. Ward, F. Ivor Roberts
Publikováno v:
Clays and Clay Minerals. 38:501-506
Spherical halloysite aggregates have been identified for the first time in mineral matter isolated from bituminous coals. The spherules, found in Permian coals of the Sydney basin, New South Wales, range from 0.4 to 0.6 µm in diameter and have a del
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39e072f0cf015b8e4fd58542145d0c05
https://doi.org/10.1346/ccmn.1990.0380506
https://doi.org/10.1346/ccmn.1990.0380506
Publikováno v:
International Journal of Coal Geology. 11:105-125
The mineralogical changes in a bituminous coal seam, thermally altered by a small basaltic intrusion, have been investigated using electronic low-temperature (oxygen plasma) ashing, X-ray diffraction and other laboratory techniques. An assemblage dom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f83d1da7fef46938a9287c00843afc6a
https://doi.org/10.1016/0166-5162(89)90001-3
https://doi.org/10.1016/0166-5162(89)90001-3
Publikováno v:
Mineralogical Magazine. 47:327-334
Buddingtonite of similar composition and properties to that described from the type area, is uniformly distributed throughout the upper 600 m of strata in the Condor Oilshale Deposit near Proserpine, Queensland. The mineral, which constitutes up to 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b93759ddec7a988bba69ffcab010703f
https://doi.org/10.1180/minmag.1983.047.344.07
https://doi.org/10.1180/minmag.1983.047.344.07
Autor:
F. Ivor Roberts
Publikováno v:
Journal of Geochemical Exploration. 17:49-62
Trace element contents for pyrite from a range of sulfide mineral occurrences in the Kangiara region, eastern Australia, illustrate two main groups of pyrite. The first group, with higher Ag, Cu, Pb and Mo contents, corresponds to samples from sulfid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::617c7a342f4d2eacc9a09b208f43f9a9
https://doi.org/10.1016/0375-6742(82)90019-x
https://doi.org/10.1016/0375-6742(82)90019-x
Publikováno v:
Quarterly Journal of Engineering Geology. 15:29-45
Summary Examination of the weathered rock profile of low grade metapelites in arid Australia illustrates changes due to two different weathering environments. The most significant was a period of high rainfall which resulted in some important changes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f20b096355ecf99e33311a42d3a161ad
https://doi.org/10.1144/gsl.qjeg.1982.015.01.05
https://doi.org/10.1144/gsl.qjeg.1982.015.01.05
Autor:
F. Ivor Roberts
Publikováno v:
Mineralogical Magazine. 46:132-134
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0f909f40e29e83d3364d0f41160a72d
https://doi.org/10.1180/minmag.1982.046.338.21
https://doi.org/10.1180/minmag.1982.046.338.21
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