Deepest exposed crust of Brazil-SHRIMP establishes three events

Geology

Volumn 27, Issue 10, 1999, Pages 947-950

  Hartmann, Léo A ^a   Leite, Jayme A D ^b   McNaughton, Neal J ^c   Santos, João Orestes S ^d  

^a FEDERAL UNIVERSITY OF RIO GRANDE DO SUL   (Brazil)

^b FEDERAL UNIVERSITY OF MATO GROSSO   (Brazil)

^c UNIVERSITY OF WESTERN AUSTRALIA   (Australia)

^d Geological Survey of Brazil CPRM   (Brazil)

Author keywords

[No Author keywords available]

Indexed keywords

IGNEOUS ROCKS; METAMORPHIC ROCKS; SHELLFISH; SILICATE MINERALS; ZIRCON;

AMPHIBOLITE FACIES; BACKSCATTERED ELECTRON IMAGES; BANDED IRON FORMATIONS; HIGH-GRADE METAMORPHIC ROCKS; HIGH-PRESSURE GRANULITES; METAMORPHIC CONDITIONS; OSCILLATORY ZONING; SENSITIVE HIGH-RESOLUTION ION MICROPROBE;

TECTONICS;

CONTINENTAL CRUST; PROTEROZOIC; URANIUM-LEAD DATING; ZIRCON;

BRAZIL; RIO GRANDE DO SUL STATE;

EID: 0033403451     PISSN: 00917613     EISSN: None     Source Type: Journal    
DOI: 10.1130/0091-7613(1999)027<0947:DECOBS>2.3.CO;2     Document Type: Article

References (13)

1. Babinski, M., Chemale, F., Jr., Hartmann, L. A., Van Schmus, W. R., and Silva, L. C., 1996, Juvenile accretion in southernmost Brazil: Geology, v. 24, p. 439-442.
2. Compston, W., Williams, I. S., and Meyer, C., 1984, U-Pb geochronology of zircons from lunar breccia 73217 using a sensitive high mass-resolution ion microprobe: Journal of Geophysical Research, v. 89, supplement, p. B525-B534.
3. Friend, C. R. L., and Kinny, P. D., 1995, New evidence for protolith ages of Lewisian granulites, northwest Scotland: Geology, v. 23, p. 1027-1030.
4. Hartmann, L. A., 1998, Deepest exposed crust of Brazil - Geochemistry of Paleoproterozoic depleted Santa Maria Chico granulites: Gondwana Research, v. 1, p. 331-341.
5. Iyer, S. S., Choudhuri, A., and Cordani, U., 1987, Granulite facies rocks of Brazil: A review of their geologic setting, geochronological evolution, petrographic and geochemical characteristics: Geological Society of India Journal, v. 29, p. 309-326.
6. Iyer, S. S., Choudhuri, A., Pattison, D. R. M., and De Paoli, G. R., 1996, Petrology and geochemistry of the Neoproterozoic Guaxupé granulite facies terrain, southeastern Brazil: Precambrian Research, v. 77, p. 23-40.
7. Kinny, P. D., 1986, 3820 Ma zircons from a tonalitic Amitsoq gneiss in the Godthib district of southern West Greenland: Earth and Planetary Science Letters, v. 79, p. 337-347.
8. Leite, J. A. D., Hartmann, L. A., McNaughton, N. J., and Chemale, F., Jr., 1998, SHRIMP U/Pb zircon geochronology of Neoproterozoic juvenile and crustal-reworked terranes in southerrmost Brazil: International Geology Review, v. 40, p. 688-705.
9. Mezger, K., 1992, Temporal evolution of regional granulite lerranes: Implications for the formation of lowermost continental crust, in Fountain, D. M., et al., eds., Continental lower curst: Amsterdam, Elsevier, p. 447-478.
10. Rogers, J. J. W., 1996, A history of continents in the past three billion years: Journal of Geology, v. 104, p. 91-107.
11. Smith, J. B., Barley, M. E., Groves, D. I., Krapez, B., McNaughton, N. J., Bickle, M. J., and Chapman, H. J., 1998, The Scholl shear zone, West Pilbara: Evidence for a terrane boundary structure from integrated lectonic analyses, SHRIMP U/Pb dating and isotopic and geochemical data of granitoids: Precambrian Research, v. 88, p. 143-171.
12. Vavra, G., 1994, Systematics of internal zircon morphology in major Variscan granitoid types: Contributions to Mineralogy and Petrology, v. 117, p. 331-344.
13. Wernick, E., and Almeida, F. F. M., 1979, The geotectonic environments of Early Precambrian granulites in Brazil: Precambrian Research, v. 8, p. 1-17.