Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Guy Turco"'
Autor:
Guy Turco, Jean-Pierre Pupin
Publikováno v:
Bulletin de Minéralogie. 104:724-731
The method applied in the typologic study of zircon populations constitutes a useful means of solving petrologic and comparative petrologic problems. The typological characteristics are essentially controlled by the chemistry (Aluminium/alkalines rat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::caacdc8b6a18ce333fc2d4dd3b89d6fd
https://doi.org/10.3406/bulmi.1981.7516
https://doi.org/10.3406/bulmi.1981.7516
Publikováno v:
Bulletin de Minéralogie. 111:173-178
The "butterfly" twin is a particular case of geniculate twinning in zircons. In contrast with elbow twins, the butterfly twinned crystals, frequently flattened on (110), show two double pyramidal ends. This very rare twin has been found in orogenic g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7f3cf9c78c1f5f3ab04d53bab23c6b5
https://doi.org/10.3406/bulmi.1988.8082
https://doi.org/10.3406/bulmi.1988.8082
Publikováno v:
Bulletin de la Société française de Minéralogie et de Cristallographie. 97:278-283
Du zircon ZrSiO₄, anhydre et hydroxylé, ainsi que de l'oxyde de zirconium, dopés au Dy³⁺ ont été synthétisés par voie hydrothermale et leur étude par la thermoluminescence artificielle entreprise. Le zircon ZrSiO₄, obtenu à partir de Z
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e55682bbe01ae96b2234ea1f1d38a214
https://doi.org/10.3406/bulmi.1974.6894
https://doi.org/10.3406/bulmi.1974.6894
Publikováno v:
Bulletin de la Société française de Minéralogie et de Cristallographie. 98:159-165
The mineralogical and physico-chemical study of the garnet and the chlorites of Sarvengude (Maures, Var) permitted to precise their characteristic. It is a garnet of almandine-pyrope type and a chlorite of ripidolite type. On the other hand the alman
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b73095db8ed68a01872dff78290130d1
https://doi.org/10.3406/bulmi.1975.6977
https://doi.org/10.3406/bulmi.1975.6977
Publikováno v:
Chemical Geology. 12:257-269
The substituted topaz Al 2 GeO 4 (OH,F) 2 , Al 2 (Si x Ge 1- x )O 4 (OH,F) 2 and Ga 2 GeO 4 (OH,F) 2 , as well as the substituted zunyite Al 13 Ge 5 O 20 (OH,F) 16 F 2 Cl have been synthetised. The unit-cell parameters of these artificial minerals, i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0525259ea020ad2c0151b52ce42c120
https://doi.org/10.1016/0009-2541(73)90003-x
https://doi.org/10.1016/0009-2541(73)90003-x
Publikováno v:
Geochimica et Cosmochimica Acta. 39:11-26
Resume Le zircon a ete synthetise a partir de nombreux sels mineraux et d'un compose organique du zirconium. Sa formation a ete realisee en milieu reactionnel acide. Les cristaux obtenus visibles aux microscopes optique et a balayage ont ete etudies
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bddbccc8f690804b2acfdc0c5cdbab1
https://doi.org/10.1016/0016-7037(75)90181-7
https://doi.org/10.1016/0016-7037(75)90181-7
Publikováno v:
Bulletin de la Société française de Minéralogie et de Cristallographie. 90:181-184
From a solution of Na₂HAsO₄ and sodium aluminate hexagonal crystals of composition As₂O₅, Al₂O₃, (Na₂O)₃,₅₋₄,₅, 15H₂O ± 2H₂O, were deposited on cooling. The space group of the compound is either P-3m, or P-3C and the para
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8081b8b18d63a6af52d5097d7b8c893e
https://doi.org/10.3406/bulmi.1967.6097
https://doi.org/10.3406/bulmi.1967.6097
Autor:
Raoul Caruba, Guy Turco
Publikováno v:
Bulletin de la Société française de Minéralogie et de Cristallographie. 94:427-436
Authors discribing zircon crystals or studying lattice and structure of this mineral often use two different indexation modes for its faces. To avoid this confusion, we have set up reference indexations of all known faces of natural zircon crystals a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f1c87e0b1a7ac5e9ff810a5bd75eeb2
https://doi.org/10.3406/bulmi.1971.6597
https://doi.org/10.3406/bulmi.1971.6597
Autor:
Guy Turco, Fernand Tessier
Publikováno v:
Bulletin de la Société française de Minéralogie et de Cristallographie. 88:456-462
De la sidérose authigène, formant soit de petits sphérolites assez nombreux, soit de rares agrégats de cristaux, soit enfin quelques cristaux isolés, est étudiée. Elle provient d'une argile kaolinique sableuse bariolée, d'âge antemaestrichti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8c4993ed6fca48f2ea39ff2cdbcbabe
https://doi.org/10.3406/bulmi.1965.5879
https://doi.org/10.3406/bulmi.1965.5879
Publikováno v:
Chemical Geology. 11:49-69
The first synthesis of wadeite, K2ZrSi3O9, was realised by the authors in 1970 using a hydrothermal technique. These new data were the basis for further research works about the formation of this mineral by way of dry and hydrothermal synthesis, maki
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc018e7c9fe9af19de97c252fba75b20
https://doi.org/10.1016/0009-2541(73)90076-4
https://doi.org/10.1016/0009-2541(73)90076-4