Published 1990
| Version v1
Miscellaneous
Open
Brusque belt: a monocyclic evolution ?
- 1. Sao Paulo Univ., SP (Brazil). Inst. de Geociencias
Description
This paper discusses the radiometric data for the Brusque Belt (SC) where Rb-Sr isochrons, U-Pb in zircons, K-Ar in minerals and whole rock Sm-Nd model ages are available. The analysis of these results reveals two main groups, without intermediate values. The first, 500 to 800Ma., is related to magmatic and metamorphic ages and the second, 1600-2000Ma begin with the (probably) sedimentation age. A monociclic evolution is proposed, but with uncertanties in the age of the first metamorphic phase. (author)
Availability note (English)
MF available from INIS under the Report Number.Files
22076381.pdf
Files
(283.7 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:721a12f15cf17b94f95de1548142a30a
|
283.7 kB | Preview Download |
Additional details
Additional titles
- Original title (Portuguese)
- O grupo Brusque: uma evolucao monociclica?
Publishing Information
- Imprint Pagination
- 10 p.
- Report number
- INIS-BR--2688
Conference
- Title
- 36. Brazilian Congress of Geology.
- Dates
- 28 Oct - 1 Nov 1990.
- Place
- Natal, RN (Brazil).
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 22076381
- Subject category
- S58: GEOSCIENCES; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- BRAZIL; EXPERIMENTAL DATA; GEOLOGIC HISTORY; ISOTOPE DATING; METAMORPHISM; MINERALS; ROCKS; ZIRCON
- Descriptors DEC
- AGE ESTIMATION; DATA; DEVELOPING COUNTRIES; INFORMATION; LATIN AMERICA; NUMERICAL DATA; SILICATE MINERALS; SOUTH AMERICA