Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Joachim Karfunkel"'
Autor:
Dennis Arthuso Quintão, Fabrício de Andrade Caxito, Joachim Karfunkel, Florence Rodrigues Vieira, Hildor José Seer, Lúcia Castanheira de Moraes, Luiz Carlos Borges Ribeiro, Antônio Carlos Pedrosa-Soares
Publikováno v:
Brazilian Journal of Geology, Vol 47, Iss 2, Pp 159-182
ABSTRACT: The campanian Uberaba Formation, which crops out around the homonymous town, is composed of greenish lithic sandstones and conglomerates with possible volcanoclastic contribution. In this unit, heavy minerals such as ilmenite, garnet, perov
Externí odkaz:
https://doaj.org/article/0fd1d904926b4275bd435f259726cd07
Autor:
Mario Luiz de Sá C. Chaves, Joachim Karfunkel, Vladimir Bermanec, Vladimir Zebec, Ricardo Scholz, Luiz Alberto D. Menezes Filho
Publikováno v:
REM: International Engineering Journal, Vol 71, Iss 1, Pp 37-43
Abstract The Espinhaço Range, in the Diamantina region (central part of the State of Minas Gerais), is known worldwide as a famous source of associated occurrence of quartz, rutile and/or anatase crystals. The latter is also a classic accompanying m
Externí odkaz:
https://doaj.org/article/8e84ca4ee1b8428981e1fdefc5fc7b33
Autor:
Joachim Karfunkel, Donald Hoover, Augusto Fonseca Fernandes, Geraldo Norberto Chaves Sgarbi, Klaus Kambrock, Gustavo Diniz Oliveira
Publikováno v:
Brazilian Journal of Geology, Vol 44, Iss 2, Pp 325-338
Important diamond deposits southeast of Coromandel and the local geology have been studied in an attempt to understand what surface source provided the stones. River gravels of Pleistocene to Recent age from this region have supplied most of Brazil's
Externí odkaz:
https://doaj.org/article/4f5b95dfb9c2428e954639a0bb1b3c6f
Publikováno v:
REM: International Engineering Journal, Vol 70, Iss 1, Pp 39-45
Abstract Easily understandable thematic maps of geo-scientific parameters are important for land use decision making. If several parameters are relevant and have to be compared, it is important that they are consistent with each other, available at t
Externí odkaz:
https://doaj.org/article/c89829bf802144d2801a0071d73b8262
Autor:
Andreas Hoppe, Joachim Karfunkel, Friedrich Renger, Detlev Walde, Christoph Hilgers, Christoph Gaedicke, Gerhard Bohrmann, Christian Betzler, Friedhelm von Blanckenburg, Reinhard Gaupp, Heinz-Gerd Röhling
Publikováno v:
Zeitschrift der Deutschen Gesellschaft für Geowissenschaften. 173:395-401
Autor:
J. R. Toledo, Raphaela de Oliveira, Joachim Karfunkel, Lorena N. Dias, Ricardo Scholz, Klaus Krambrock, Maurício V. B. Pinheiro, Mario Luiz de Sá Carneiro Chaves
Publikováno v:
American Mineralogist. 105:1051-1059
Montebrasite is a lithium aluminum phosphate mineral with the chemical formula LiAlPO4(Fx,OH1–x) and considered a rare gemstone material when exhibiting good crystallinity. In general, montebrasite is colorless, sometimes pale yellow or pale blue.
Autor:
Mario Luiz de Sá Carneiro Chaves, Klaus Krambrock, Maurício V. B. Pinheiro, Ricardo Scholz, Joachim Karfunkel
Publikováno v:
Physics and Chemistry of Minerals. 48
The origin of gamma irradiation-induced strong yellow color in brazilianite from Brazil is investigated. The irradiation-induced optical absorption band responsible for the color shows an onset in the blue spectral region at about 2.5 eV and maximum
Autor:
Marcus Vinícius Theodoro Soares, Luiz Carlos Borges Ribeiro, Ariela Costa Diniz, Thiago da Silva Marinho, Agustín G. Martinelli, Carolina Klock, Lucas E. Fiorelli, Joachim Karfunkel, Giorgio Basilici, João Ismael da Silva, André Marconato
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 528:147-159
We describe a globally rare example of a tetrapod burrow from the Upper Cretaceous Bauru Group (Bauru Basin) from Peirópolis, Minas Gerais State, Brazil. The sedimentary succession containing the burrow includes a rich vertebrate assemblage comprisi
Autor:
Luiz Alberto Dias Menezes Filho, Vladimir Bermanec, Vladimir Zebec, Mario Luiz de Sá Carneiro Chaves, Joachim Karfunkel, Ricardo Scholz
Publikováno v:
REM-International Engineering Journal, Volume: 71, Issue: 1, Pages: 37-43, Published: MAR 2018
REM-International Engineering Journal v.71 n.1 2018
REM-International Engineering Journal
Fundação Gorceix (FG)
instacron:FG
REM: International Engineering Journal, Vol 71, Iss 1, Pp 37-43
REM-International Engineering Journal v.71 n.1 2018
REM-International Engineering Journal
Fundação Gorceix (FG)
instacron:FG
REM: International Engineering Journal, Vol 71, Iss 1, Pp 37-43
The Espinhaço Range, in the Diamantina region (central part of the State of Minas Gerais), is known worldwide as a famous source of associated occurrence of quartz, rutile and/or anatase crystals. The latter is also a classic accompanying mineral of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9df733bbd3ad85158c64e6435e04fdab
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2018000100037&lng=en&tlng=en
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2018000100037&lng=en&tlng=en
Autor:
Geraldo Norberto Chaves Sgarbi, Joachim Karfunkel, Detlef Walde, Donald Brunton Hoover, Augusto Fonseca Fernandes, Klaus Kambrock, Gary Michelfelder
Publikováno v:
Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 277:237-250