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1.320  Articles
1 of 132 pages  |  10  records  |  more records»
The mathematical modelling of geological structures, i.e. magma intrusion or dyke, has been done,  based on magnetic data with inversion techniques using MatLab. The magnetic equation is a non-linear equation, and completion is done using a linear ap... see more

The Antioquia batholith represents the magmatic record of the interaction between the Farallón and Caribbean plates with the NW part of the South American Plate during the Meso-Cenozoic. Several authors have reported zircon U-Pb ages and whole rock geoche... see more

Cataclastic and mylonitic rocks exposed in the southwestern part of the Peninsula de Mejillones, northern Chile, are intruded at high angles of the foliation by younger, steeply inclined (±70°) basaltic dykes that resemble intru¬sive tension gashes with k... see more

Fueron caracterizados los cuerpos dómicos del área geotérmica de Paipa, Departamento de Boyacá, separados en tres sectores. El Alto Los Volcanes comprende dos zonas donde son evidentes cuatro elevaciones que sobresalen de la superficie, con aflo... see more

Cretaceous porphyry copper deposits of northern Chile (28º-29º30’ S) are genetically related with dacitic to dioritic porphyries and they represent a still poorly-explored target for Cu resources. The porphyries correspond to stocks distributed into two s... see more

Early Jurassic arc-related igneous rocks host porphyry copper prospects and gold-bearing quartz vein deposits in southern Peru. Ten new zircon U-Pb ages for wall rocks of gold-bearing quartz veins, Jurassic rocks and copper-mineralized porphyry bodies in ... see more

Intrude/intrusion: To thrust or force in or upon someone or something especially without permission, welcome, or fitness; to cause to enter as if by force; the act of intruding or the state of being intruded, especially: theact of wrongfully entering upon... see more

AbstractThe geology of the Phalaborwa Complex is described and emphasis placed on the distribution of the large number of syenite intrusions. The petrography of the different textural types of syenites is discussed and it is shown that porphyritic, granul... see more

A shallow water eruption started on October 10, 2011, ~2 km south off the coast of El Hierro (Canary Islands, Spain). The eruption lasted about five months and ended by early March 2012. Three months of unrest preceded this event with more than 10,000 loc... see more

1 of 132 pages  |  10  records  |  more records»