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1. Identity statement
Reference TypeJournal Article
Sitemtc-m12.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Repositorysid.inpe.br/mtc-m12@80/2006/05.02.20.42   (restricted access)
Last Update2006:05.02.20.42.35 (UTC) administrator
Metadata Repositorysid.inpe.br/mtc-m12@80/2006/05.02.20.42.36
Metadata Last Update2018:06.05.00.40.45 (UTC) administrator
Secondary KeyINPE-14097-PRE/9253
DOI10.1016/j.sedgeo.2005.11.021
ISSN0037-0738
Citation KeyRossettiSant:2006:AnOrUp
TitleAnalyzing the origin of the upper cretaceous-?lower tertiary Rio Capim (Pará State, Brazil) semi flint under a sedimentologic perspective
ProjectSensoriamento Remoto Aplicado à Geologia
Year2006
MonthApr.
Access Date2024, Apr. 27
Secondary TypePRE PI
Number of Files1
Size988 KiB
2. Context
Author1 Rossetti, Dilce Fátima
2 Santos Jr, Antônio Emídio de Araújo dos
Group1 DSR-INPE-MCT-BR
Affiliation1 INPE
2 Universidade Federal do Pará, Centro de Geociências, Campus do Guamá S/N Belém-PA, Brazil
JournalSedimentary Geology
Volume186
Number1-2
Pages133-144
History (UTC)2006-05-02 20:42:36 :: rossetti -> banon ::
2006-05-04 19:24:45 :: banon -> marciana ::
2006-08-31 14:17:34 :: marciana -> administrator ::
2006-09-03 21:48:29 :: administrator -> marciana ::
2008-04-15 13:18:22 :: marciana -> administrator ::
2009-08-12 01:08:42 :: administrator -> marciana ::
2011-12-09 11:15:34 :: marciana -> administrator :: 2006
2018-06-05 00:40:45 :: administrator -> marciana :: 2006
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsGEOLOGIA
paleoambiente
Rio Capim (PA)
sedimentologia
semi flint
sedimentary structure
paleoenviromental interpretation
ipixuma formation
genesis
delta front
stratificationkolin deposit
facies architecture
AbstractThe Rio Capim kaolin, one of the largest kaolin reserves in the world currently under exploration, is typified by a lower and an upper unit consisting of a soft, well-structured kaolin and a semi flint kaolin, respectively, the latter term been applied here for a flint-like fire clay consisting of indurated kaolinite, which develops no plasticity when grounds up. The latter is characterized by its elevated hardness and massive nature, which has been preliminarily attributed to stronger weathering relative to the underlying soft kaolin. Despite the overall massive aspect, a detailed sedimentologic investigation of freshly exposed sections along open mines revealed a variety of structures in the semi flint kaolin that are attributed to primary sedimentary features. The features include channel like forms having distinct lags of quartz sandstones at their bottoms. These deposits intergrade with strata displaying a series of inclined lines, defining lobed bodies that are locally highlighted by distinctively soft, massive mud layers. The lobes are internally truncated by undulating surfaces attributed to wave erosion. The features described in this work are related to deposition of the semi flint kaolin unit in either distributary channels and mouth bar or tidal inlet and tidal delta areas associated with deltaic or wave-dominated estuarine settings, respectively. The recognition of these deposits in the semi flint unit has large implications to analyze its composition, which must have primarily included sand grain sizes, at least in the case of the lobed strata. The apparent muddy nature of the semi flint kaolin might be due, at least in part, to post depositional modification of a sandy unit composed most likely by grains of previously formed kaolinite derived from reworking of the underlying soft kaolin unit.
AreaSRE
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Analyzing the origin...
doc Directory Contentaccess
source Directory Contentthere are no files
agreement Directory Contentthere are no files
4. Conditions of access and use
Languageen
Target FileSEDGEO.pdf
User Groupadministrator
marciana
rossetti
Visibilityshown
Copy HolderSID/SCD
Archiving Policydenypublisher denyfinaldraft24
Read Permissiondeny from all and allow from 150.163
Update Permissionnot transferred
5. Allied materials
Next Higher Units8JMKD3MGPCW/3ER446E
DisseminationWEBSCI; PORTALCAPES; COMPENDEX.
Host Collectionsid.inpe.br/banon/2001/04.06.10.52
6. Notes
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7. Description control
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