| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZ3r59YDa/JwDTz |
| Repository | sid.inpe.br/iris@1916/2005/12.21.11.56 (restricted access) |
| Last Update | 2006:06.16.16.52.09 (UTC) administrator |
| Metadata Repository | sid.inpe.br/iris@1916/2005/12.21.11.56.52 |
| Metadata Last Update | 2018:06.05.01.16.37 (UTC) administrator |
| Secondary Key | INPE-13786--PRE/8972 |
| ISSN | 0012-821X |
| Citation Key | BolognaPadiVitoFont:2006:TeInPe |
| Title | Tectonic insight into a pericratonic subcrustal lithosphere affected by anorogenic creatceous magmatism in central brazil inferred from long-period magnetotellurics  |
| Year | 2006 |
| Month | Jan. |
| Access Date | 2024, Apr. 28 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 934 KiB |
| 2. Context | |
| Author | 1 Bologna, Mauricio de Souza 2 Padilha, Antonio Lopes 3 Vitorello, Icaro 4 Fontes, Sérgio L. |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JGJG 3 8JMKD3MGP5W/3C9JHD6 |
| Group | 1 DGE-INPE-MCT-BR 2 DGE-INPE-MCT-BR 3 DGE-INPE-MCT-BR |
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais, Divisão de Geofísica Espacial (INPE, DGE) 2 Instituto Nacional de Pesquisas Espaciais, Divisão de Geofísica Espacial (INPE, DGE) 3 Instituto Nacional de Pesquisas Espaciais, Divisão de Geofísica Espacial (INPE, DGE) 4 Observatório Nacional-ON/MCT |
| Journal | Earth and Planetary Science Letters |
| Volume | 241 |
| Number | 3/4 |
| Pages | 603-616 |
| History (UTC) | 2006-06-16 16:52:09 :: jefferson -> administrator :: 2006-09-28 22:32:27 :: administrator -> banon :: 2007-03-06 15:41:17 :: banon -> administrator :: 2018-06-05 01:16:37 :: administrator -> marciana :: 2006 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | Magnetotellurics Central Brazil Archean craton Cretaceous magmatism metasomatism SAO-FRANCISCO CRATON BENEATH SE BRAZIL ELECTRICAL-CONDUCTIVITY UPPER-MANTLE MINAS-GERAIS HEAT-FLOW ROCKS ANISOTROPY WAVE DISTORTION |
| Abstract | Long period magnetotelluric soundings are available in a 180-km long WSW-ENE profile across the Alto Paranaiba igneous province, a complex Cretaceous alkaline province situated mostly in the southern Neoproterozoic Brasilia fold and thrust belt in central Brazil. The data indicate 31) complexity at upper and mid-crust and a simpler 21) regional structure at lower crustal and upper mantle depths. A 2D inversion emphasizing long period data identifies a highly resistive block at the uppermost mantle below the central part of the profile, surrounded by a rapid decrease in resistivity with depth. Resistivities at the block are typical of dry olivine under upper mantle conditions and a deep cratonic lithosphere is defined for this region. It is proposed that the resistive block is a rheologically enduring structure preserved within a southwestward extension of the pericratonic lithosphere of the Archean-Early Proterozoic Sao Francisco craton that lies beneath the nappes of the Brasilia belt. Lower resistivities at shallower upper mantle depths beneath the Sanfranciscana basin at the northeastern end of the profile can be interpreted either as an increased conductivity within the lithosphere or as a localized thinned out lithosphere. The conductivity enhancement possibly arises from the addition of small amounts of water to mantle anhydrous minerals during previous metasomatic percolations. |
| Area | CEA |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Tectonic insight into... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | Tectonic insight into a pericratonic.pdf |
| User Group | administrator jefferson |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | denypublisher denyfinaldraft24 |
| Read Permission | deny from all and allow from 150.163 |
| Update Permission | transferred to jefferson |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3EU29DP |
| Dissemination | WEBSCI; PORTALCAPES. |
| Host Collection | sid.inpe.br/banon/2003/08.15.17.40 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyright creatorhistory descriptionlevel doi e-mailaddress electronicmailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |