Canindé Velho Stock of Sergipano Belt: Geology, petrography and geochemistry.
Keywords:
Canindé Velho Stock, petrography, geochemistry.Abstract
The Dioritic Canindé Velho Stock (± 6 km²), with elongated NW-SE is intrusive plutonic rocks in the Domain Canindé, and is located in the northern part of the Sergipano Belt. Their contacts with the host rocks are well marked on aerial photographs by faults. The outcrops are abundant and diorites are medium to coarse grained, show isotropic structure or locally marked by magmatic flow that oriented the crystals of hornblende, plagioclase and enclaves. The modal analysis allowed us to classify the rocks of this stock as hornblende biotite quartz diorite, quartz diorite, hornblende biotite diorite. The host rocks of the stock consists of hornblende quartz monzonite porphyry. The textures indicate that these diorite rocks have not undergone regional deformation found in the host rocks. The geochemical data identified metaluminosus nature, with calc-alkaline high K2O and shoshonitic affinities. The data showed traces of elements it is post-collision magmatic melts with affinity for the arc generated in volcanic environment. The issues identified in this stock allows assign it to post-orogenic magmatism in the Serra do Catu type.
Downloads
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work
