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1

Crustal reworking in a shear zone: transformation of metagranite to migmatite

Carvalho, B. B., Sawyer, E. W., Janasi, V. A.

Journal:

Journal of Metamorphic Geology

Year:

2016

Language:

english

File:

PDF, 7.95 MB

english, 2016

2

On the Eighth Hutton Symposium on Granites and Related Rocks

de Fátima Bitencourt, Maria, de Assis Janasi, Valdecir, Sawyer, Edward

Journal:

Year:

2017

Language:

english

File:

PDF, 137 KB

english, 2017

3

Generation of block-and-ash flows at the onset of silicic volcanism in the Paraná Magmatic Province (Brazil): evidence from photoanalysis of Caxias do Sul breccias

Guimarães, Letícia Freitas, Hornby, Adrian, Kueppers, Ulrich, Alves, Adriana, de Assis Janasi, Valdecir, Dingwell, Donald Bruce

Journal:

Bulletin of Volcanology

Year:

2019

File:

PDF, 10.75 MB

2019

4

Rapid eruption of silicic magmas from the ParanÃ¡ magmatic province (Brazil) did not trigger the Valanginian event

Rocha, Brenda C., Davies, Joshua H.F.L., Janasi, Valdecir A., Schaltegger, Urs, Nardy, AntÃ´nio J.R., Greber, Nicolas D., Lucchetti, Ana Carolina F., Polo, Liza A.

Journal:

Year:

2020

File:

PDF, 1.36 MB

2020

5

Barium Ferrite Powders Obtained by Co-Precipitation

S.R. Janasi, D. Rodrigues, M. Emura, F.J.G. Landgraf

Journal:

physica status solidi (a)

Year:

2001

Language:

english

File:

PDF, 174 KB

english, 2001

6

U–Pb chronostratigraphy of the granitic magmatism in the Agudos Grandes Batholith (west of São Paulo, Brazil) — implications for the evolution of the Ribeira Belt

V.A Janasi, R.J Leite, W.R van Schmus

Journal:

Journal of South American Earth Sciences

Year:

2001

Language:

english

File:

PDF, 604 KB

english, 2001

7

Volcanic glass in Cretaceous dacites and rhyolites of the Paraná Magmatic Province, southern Brazil: Characterization and quantification by XRD-Rietveld

de Andrade, Fábio Ramos Dias, Polo, Liza Angélica, de Assis Janasi, Valdecir, de Souza Carvalho, Flávio Machado

Journal:

Journal of Volcanology and Geothermal Research

Year:

2017

Language:

english

File:

PDF, 2.85 MB

english, 2017

8

SHRIMP U-Pb zircon dating of Neoproterozoic granites from the easternmost São Roque Domain, Ribeira Belt

Lamoso, Ingrid Souto Maia, Janasi, Valdecir De Assis

Journal:

Geologia USP Série Científica

Year:

2019

File:

PDF, 23.46 MB

2019

9

Zircon provenance in meta-sandstones of the São Roque Domain: Implications for the Proterozoic evolution of the Ribeira Belt, SE Brazil

Henrique-Pinto, R., Janasi, V.A., Vasconcellos, A.C.B.C., Sawyer, E.W., Barnes, S.-J., Basei, M.A.S., Tassinari, C.C.G.

Journal:

Precambrian Research

Year:

2015

Language:

english

File:

PDF, 7.81 MB

english, 2015

10

Space–time relation of post-collisional granitic magmatism in Santa Catarina, southern Brazil: U–Pb LA-MC-ICP-MS zircon geochronology of coeval mafic–felsic magmatism related to the Major Gercino Shear Zone

Luana Moreira Florisbal, Valdecir de Assis Janasi, Maria de Fátima Bitencourt, Larry M. Heaman

Journal:

Precambrian Research

Year:

2012

Language:

english

File:

PDF, 3.22 MB

english, 2012

11

Magnetic properties of coprecipitated barium ferrite powders as a function of synthesis conditions

Janasi, S.R., Rodrigues, D., Landgraf, F.J.G., Emura, M.

Journal:

IEEE Transactions on Magnetics

Year:

2000

Language:

english

File:

PDF, 70 KB

english, 2000

12

Evidence for Paleoproterozoic anatexis and crustal reworking of Archean crust in the São Francisco Craton, Brazil: A dating and isotopic study of the Kinawa migmatite

Carvalho, B.B., Janasi, V.A., Sawyer, E.W.

Journal:

Precambrian Research

Year:

2017

Language:

english

File:

PDF, 4.86 MB

english, 2017

13

Tracking the oxygen fugacity of enclave-forming granitic melts through plagioclase trace element signatures

Alves, Adriana, Janasi, Valdecir de Assis

Journal:

Contributions to Mineralogy and Petrology

Year:

2020

File:

PDF, 1.10 MB

2020

14

Petrogenesis of syntectonic granites emplaced at the transition from thrusting to transcurrent tectonics in post-collisional setting: Whole-rock and Sr–Nd–Pb isotope geochemistry in the Neoproterozoic Quatro Ilhas and Mariscal Granites, Southern Brazil

Florisbal, Luana Moreira, Bitencourt, Maria de Fátima, Janasi, Valdecir de Assis, Nardi, Lauro Valentim Stoll, Heaman, Larry M.

Journal:

Year:

2012

Language:

english

File:

PDF, 3.59 MB

english, 2012

15

Subdivision of Hysteresis Loss in Mn-Zn Ferrite Toroidal Cores

Landgraf, F.J.G., Lazaro-Colan, V.A., Janasi, S.R., Leicht, J.

Journal:

IEEE Transactions on Magnetics

Year:

2012

Language:

english

File:

PDF, 460 KB

english, 2012

16

Crystallization conditions and controls on trace element residence in the main minerals from the Pedra Branca Syenite, Brazil: An electron microprobe and LA-ICPMS study

Carvalho, Bruna Borges, Janasi, Valdecir de Assis

Journal:

Year:

2012

Language:

english

File:

PDF, 3.90 MB

english, 2012

17

The late- to postorogenic transition in the Apiaí domain, SE Brazil: Constraints from the petrogenesis of the Neoproterozoic Agudos Grandes Granite Batholith

Renato Jordan Leite, Valdecir de Assis Janasi, Robert A. Creaser, Larry M. Heaman

Journal:

Journal of South American Earth Sciences

Year:

2007

Language:

english

File:

PDF, 3.53 MB

english, 2007

18

Magmatismo há ca. 660 - 640 Ma no Domínio Socorro: registros de convergência pré-colisional na aglutinação do Gondwana Ocidental

Hackspacher, Peter Christian, Fetter, Allen Hutcheson, Ebert, Hans Dirk, Janasi, Valdecir de Assis, Dantas, Elton Luiz, Oliveira, Marcos Aurélio Farias de, Braga, Iramaia Furtado, Negri, Francisco de

Journal:

Geologia USP Série Científica

Year:

2003

File:

PDF, 1.02 MB

2003

19

Orogen migration and tectonic setting of the Andrelândia Nappe system: An Ediacaran western Gondwana collage, south of São Francisco craton

Mario da Costa Campos Neto, Miguel Angelo Stipp Basei, Valdecir de Assis Janasi, Renato Moraes

Journal:

Journal of South American Earth Sciences

Year:

2011

Language:

english

File:

PDF, 1.96 MB

english, 2011

20

Contemporaneous alkaline and tholeiitic magmatism in the Ponta Grossa Arch, Paraná-Etendeka Magmatic Province: Constraints from U–Pb zircon/baddeleyite and 40Ar/39Ar phlogopite dating of the José Fernandes Gabbro and mafic dykes

Almeida, Vidyã V., Janasi, Valdecir A., Heaman, Larry M., Shaulis, Barry J., Hollanda, Maria Helena B.M., Renne, Paul R.

Journal:

Journal of Volcanology and Geothermal Research

Year:

2017

Language:

english

File:

PDF, 1.07 MB

english, 2017

21

Magnetic Properties of Barium Ferrite Powders Obtained by Coprecipitation

Janasi, S.R., Rodrigues, Daniel, Landgraf, Fernando José Gomes, Emura, M.

Journal:

Key Engineering Materials

Year:

2001

File:

PDF, 616 KB

2001

22

Preface

Cañón-Tapia, Edgardo, Polo, L.A., Giordano, D., Janasi, V.A., Guimarães, L.F., Lima, E.F., Cañon-Tapia, E., Roverato, M.

Journal:

Journal of Volcanology and Geothermal Research

Year:

2018

Language:

english

File:

PDF, 197 KB

english, 2018

23

Flow and fragmentation patterns in the silicic feeder system and related deposits in the Paraná-Etendeka Magmatic Province, São Marcos, South Brazil

Guimarães, L.F., De Campos, C.P., Janasi, V.A., Lima, E.F., Dingwell, D.B.

Journal:

Journal of Volcanology and Geothermal Research

Year:

2018

Language:

english

File:

PDF, 54.91 MB

english, 2018

24

Reaction microtextures of monazite: Correlation between chemical and age domains in the Nazaré Paulista migmatite, SE Brazil

Lucelene Martins, Silvio Roberto Farias Vlach, Valdecir de Assis Janasi

Journal:

Chemical Geology

Year:

2009

Language:

english

File:

PDF, 3.13 MB

english, 2009

25

The onset of flood basalt volcanism, Northern Paraná Basin, Brazil: A precise U–Pb baddeleyite/zircon age for a Chapecó-type dacite

Valdecir de Assis Janasi, Vivian Azor de Freitas, Larry H. Heaman

Journal:

Earth and Planetary Science Letters

Year:

2011

Language:

english

File:

PDF, 370 KB

english, 2011

26

Curie Temperature Determination of Pr14Fe79.9-xCoxB6Nb0.1 Permanent Magnet Alloys

Barbosa, L.P., Takiishi, H., Faria, R.N., Rodrigues, Daniel, Janasi, S.R.

Journal:

Materials Science Forum

Year:

2006

Language:

english

File:

PDF, 288 KB

english, 2006

27

Sources of granite magmatism in the Embu Terrane (Ribeira Belt, Brazil): Neoproterozoic crust recycling constrained by elemental and isotope (Sr-Nd-Pb) geochemistry

Alves, Adriana, Janasi, Valdecir de Assis, da Costa Campos Neto, Mario

Journal:

Journal of South American Earth Sciences

Year:

2015

Language:

english

File:

PDF, 1.96 MB

english, 2015

28

Removal of Pb2+from aqueous solutions using two Brazilian rocks containing zeolites

M. C. Shinzato, T. J. Montanheiro, V. A. Janasi, S. Andrade, J. K. Yamamoto

Journal:

Environmental Earth Sciences

Year:

2012

Language:

english

File:

PDF, 298 KB

english, 2012

29

ASSOCIATED A-TYPE SUBALKALINE AND HIGH-K CALC-ALKALINE GRANITES IN THE ITU GRANITE PROVINCE, SOUTHEASTERN BRAZIL: PETROLOGICAL AND TECTONIC SIGNIFICANCE

de Assis Janasi, V., Vlach, S. R. F., da Costa Campos Neto, M., Ulbrich, H. H.G.J.

Journal:

The Canadian Mineralogist

Year:

2009

File:

PDF, 4.07 MB

2009

30

The origin of felsic microgranitoid enclaves: Insights from plagioclase crystal size distributions and thermodynamic models

Alves, Adriana, de Souza Pereira, Giovanna, de Assis Janasi, Valdecir, Higgins, Michael, Polo, Liza Angelica, Juriaans, Orlando Stanley, Ribeiro, Bruno Vieira

Journal:

Year:

2015

Language:

english

File:

PDF, 1.28 MB

english, 2015

31

Volcanic stratigraphy of intermediate to acidic rocks in southern Paraná Magmatic Province, Brazil

Polo, Liza Angélica, Janasi, Valdecir de Assis

Journal:

Geologia USP Série Científica

Year:

2014

File:

PDF, 19.37 MB

2014

32

The Determination of Total Hydrogen, Carbon, Nitrogen and Sulfur in Silicates, Silicate Rocks, Soils and Sediments

Sandra Andrade, Horstpeter H. Ulbrich, Valdecir A. Janasi, Margareth S. Navarro

Journal:

Geostandards and Geoanalytical Research (Wiley)

Year:

2009

File:

PDF, 136 KB

2009

33

Provenance and sedimentary environments of the Proterozoic São Roque Group, SE-Brazil: Contributions from petrography, geochemistry and Sm–Nd isotopic systematics of metasedimentary rocks

Henrique-Pinto, R., Janasi, V.A., Tassinari, C.C.G., Carvalho, B.B., Cioffi, C.R., Stríkis, N.M.

Journal:

Journal of South American Earth Sciences

Year:

2015

Language:

english

File:

PDF, 7.24 MB

english, 2015

34

Mathiasite-loveringite and priderite in mantle xenoliths from the Alto Paranaíba Igneous Province, Brazil: genesis and constraints on mantle metasomatism

Vidyã V. Almeida,Valdecir de A. Janasi…

Journal:

Central European Journal of Geosciences

Year:

2014

Language:

english

File:

PDF, 5.67 MB

english, 2014

35

Effusive silicic volcanism in the Paraná Magmatic Province, South Brazil: Physico-chemical conditions of storage and eruption and considerations on the rheological behavior during emplacement

Polo, L.A., Giordano, D., Janasi, V.A., Guimarães, L.F.

Journal:

Journal of Volcanology and Geothermal Research

Year:

2017

Language:

english

File:

PDF, 3.88 MB

english, 2017

36

Geological, geochemical and isotope diversity of ~ 134 Ma dykes from the Florianópolis Dyke Swarm, Paraná Magmatic Province: Geodynamic controls on petrogenesis

Florisbal, L.M., Janasi, V.A., Bitencourt, M.F., Nardi, L.V.S., Marteleto, N.S.

Journal:

Journal of Volcanology and Geothermal Research

Year:

2017

Language:

english

File:

PDF, 2.96 MB

english, 2017

37

Contamination in mafic mineral-rich calc-alkaline granites: a geochemical and Sr-Nd isotope study of the Neoproterozoic Piedade Granite, SE Brazil

Leite, Renato J., Janasi, Valdecir A., Martins, Lucelene

Journal:

Anais da Academia Brasileira de Ciências

Year:

2006

Language:

english

File:

PDF, 7.44 MB

english, 2006

38

Reply to the Discussion by Duarte and Hartmann on "volcanic stratigraphy of intermediate to acidic rocks in southern Paraná Magmatic Province, Brazil" by Polo and Janasi (2014), geologia USP. série científica, 14(2), 83-100

Polo, Liza Angélica, Janasi, Valdecir de Assis

Journal:

Geologia USP Série Científica

Year:

2014

Language:

english

File:

PDF, 1.59 MB

english, 2014

39

Geometry effect on the magnetic properties of manganese zinc ferrite

F.J.G. Landgraf, V. Lázaro-Cólan, J. Leicht, S.R. Janasi, M.F. Lopes

Journal:

Journal of Magnetism and Magnetic Materials

Year:

2008

Language:

english

File:

PDF, 118 KB

english, 2008

40

Elemental and Sr–Nd isotope geochemistry of two Neoproterozoic mangerite suites in SE Brazil: implications for the origin of the mangerite–charnockite–granite series

Valdecir de Assis Janasi

Journal:

Precambrian Research

Year:

2002

Language:

english

File:

PDF, 1.25 MB

english, 2002

41

Contrasted crustal sources as defined by whole-rock and Sr–Nd–Pb isotope geochemistry of neoproterozoic early post-collisional granitic magmatism within the Southern Brazilian Shear Belt, Camboriú, Brazil

Florisbal, Luana Moreira, de Assis Janasi, Valdecir, de Fátima Bitencourt, Maria, Stoll Nardi, Lauro Valentim, Heaman, Larry M.

Journal:

Journal of South American Earth Sciences

Year:

2012

Language:

english

File:

PDF, 6.73 MB

english, 2012

42

Magmatismo há ca. 660 - 640 Ma no Domínio Socorro: registros de convergência pré-colisional na aglutinação do Gondwana Ocidental

Hackspacher, Peter Christian, Fetter, Allen Hutcheson, Ebert, Hans Dirk, Janasi, Valdecir de Assis, Dantas, Elton Luiz, Oliveira, Marcos Aurélio Farias de, Braga, Iramaia Furtado, Negri, Francisco de

Journal:

Geologia USP Série Científica

Year:

2003

File:

PDF, 1.02 MB

2003

43

PrFeB Based Alloys Obtained by Melt Spinning for the Production of Permanent Magnets

Meira, Marco Antonio, MoisÃ©s, Lucas Costa, da Silva, Melissa Rohrig Martins, Real Janasi, Susilene, Takiishi, Hidetoshi

Journal:

Materials Science Forum

Year:

2020

File:

PDF, 787 KB

2020

44

Magnetic fabrics and their relationship with the emplacement of the Piracaia pluton, SE Brazil

M. Irene B. Raposo, Leonardo Frederico Pressi, Valdecir de Assis Janasi

Journal:

International Journal of Earth Sciences

Year:

2012

Language:

english

File:

PDF, 1023 KB

english, 2012

45

Rare earth element and yttrium geochemistry applied to the genetic study of cryolite ore at the Pitinga Mine (Amazon, Brazil)

Minuzzi, Orlando R.R., Bastos Neto, Artur C., Formoso, Milton L.L., Andrade, Sandra, Janasi, Valcir A., Flores, Juan A.

Journal:

Anais da Academia Brasileira de Ciências

Year:

2008

Language:

english

File:

PDF, 1.28 MB

english, 2008

46

Remoção de Pb2+ e Cr3+ em solução por zeólitas naturais associadas a rochas eruptivas da formação serra geral, bacia sedimentar do Paraná

Shinzato, Mirian Chieko, Montanheiro, Tarcísio José, Janasi, Valdecir de Assis, Andrade, Sandra, Yamamoto, Jorge Kazuo

Journal:

Year:

2009

File:

PDF, 286 KB

2009

47

U-Pb dating, Lu-Hf isotope systematics and chemistry of zircon from the Morro do Polvilho meta-trachydacite: constraints on sources of magmatism and on the depositional age of the São Roque Group

Henrique-Pinto, Renato, Janasi, Valdecir De Assis, Campanha, Ginaldo Ademar da Cruz

Journal:

Geologia USP Série Científica

Year:

2018

File:

PDF, 11.42 MB

2018

48

Effect of Oxygen Content during Sintering on the Losses of MnZn Ferrites

Real Janasi, Susilene, Lázaro-Colán, Victoria A., Landgraf, Fernando J.G., de Campos, Marcos Flávio

Journal:

Materials Science Forum

Year:

2014

Language:

english

File:

PDF, 1.22 MB

english, 2014

49

Timing and sources of granite magmatism in the Ribeira Belt, SE Brazil: insights from zircon in situ U-Pb dating and Hf isotope geochemistry in granites from the São Roque Domain

de Assis Janasi, Valdecir, Andrade, Sandra, Vasconcellos, Antonio Carlos B.C., Henrique-Pinto, Renato, Ulbrich, Horstpeter H.G.J.

Journal:

Journal of South American Earth Sciences

Year:

2015

Language:

english

File:

PDF, 4.14 MB

english, 2015

50

Enhancing Maficity of Granitic Magma during Anatexis: Entrainment of Infertile Mafic Lithologies

Carvalho, B B, Sawyer, E W, Janasi, V A

Journal:

Journal of Petrology

Year:

2017

Language:

english

File:

PDF, 5.56 MB

english, 2017

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