2005
DOI: 10.1016/j.jsames.2005.04.004
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Emplacement and deformation of the Cachoeirinha pluton (Borborema province, NE Brazil) inferred through petrostructural studies: Constraints on regional strain fields

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Cited by 18 publications
(17 citation statements)
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“…Therefore, these data allow the timing of this tectonic phase of the Brasiliano orogeny to be broadly constrained to the time span 630-600 Ma. The 587 ± 8 Ma and 573 ± 4 Ma ages of the Cachoeirinha pluton and Cabanas granite, respectively, are consistent with field relationship and internal structures in these intrusions, which suggest that the Cachoeirinha pluton is older than the Cabanas granite (Neves et al, 2005). The lack of large mylonitic zones in the Cachoeirinha pluton and its NNE-trending orientation indicate that it was not intensely affected by strike-slip-related deformation.…”
Section: Brasiliano-age Eventssupporting
confidence: 61%
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“…Therefore, these data allow the timing of this tectonic phase of the Brasiliano orogeny to be broadly constrained to the time span 630-600 Ma. The 587 ± 8 Ma and 573 ± 4 Ma ages of the Cachoeirinha pluton and Cabanas granite, respectively, are consistent with field relationship and internal structures in these intrusions, which suggest that the Cachoeirinha pluton is older than the Cabanas granite (Neves et al, 2005). The lack of large mylonitic zones in the Cachoeirinha pluton and its NNE-trending orientation indicate that it was not intensely affected by strike-slip-related deformation.…”
Section: Brasiliano-age Eventssupporting
confidence: 61%
“…Dextral and sinistral shear zones are consistently oriented NNE and ENE, respectively. These observations, in association with an AMS survey, are evidence that intrusion of the Cachoeirinha pluton occurred during bulk NW-SE shortening, with zones of non-coaxial shear developing locally (Neves et al, 2005).…”
Section: Study Areasupporting
confidence: 59%
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“…De acordo com a metodologia aplicada por Archanjo et al (2002), Neves et al (2005), Mariano et al (2009) e Davis et al (2010, neste estudo foram coletados em cada estação de dois a três testemunhos cilíndricos com comprimento entre INTRODUÇÃO A Anisotropia de Susceptibilidade Magnética (ASM) tem sido empregada para obter informação dos alinhamentos dos grãos minerais, mesmo para rochas que são consideradas visualmente isotrópicas (Tarling e Hrouda, 1993;Borradaile e Henry, 1997;Bouchez, 1997). Na presença de um campo magnético, todas as substâncias naturais são magnetizáveis, embora com intensidades e orientações diferentes.…”
Section: Anisotropia De Susceptibilidade Magnética (Asm)unclassified
“…localizado no domínio Sul da Província Borborema (Figura 1). Devido à existência local de apenas foliações magmáticas no PC, foi utilizada a técnica de ASM para obtenção das foliações e lineações magnéticas (Borradaile e Henry, 1997;Neves et al, 2005;Mariano et al, 2009;Davis et al, 2010;Borradaile e Jackson, 2010). Associado à ASM, foi realizado no PC o levantamento magnetométrico, tratando-se de uma aplicação inédita destas ferramentas no modelamento de corpos ígneos.…”
Section: Anisotropia De Susceptibilidade Magnética (Asm)unclassified