Introduction: The Sudbury impact structure is one of three large complex impact basins on Earth that provide unique opportunities to understand the structural characteristics of multi-ring impact basins [1]. The impact event formed ~1.85 Ga, resulting in a ~200 km diameter impact structure [2]. The structural expression at Sudbury is very complex with evidence of extensive post-impact tectonism...

The Wadhrai granite stock is a part of the Nagar Parkar Igneous Complex, an extension Neoproterozoic Malani Suite western Rajasthan. It occupied by petrographically uniform comprising perthite, plagioclase, quartz, with small quantities biotite, opaque oxides, titanite, and secondary minerals. rocks are sparingly porphyritic contain dykes microgranite, aplite, rare pegmatite. In south-central p...

Kimberlites occur as dykes up to 3 m thick and isometric bodies in the southern explored part of a NE-SW trending Karoo graben across the Mozambique Belt in northern Mozambique. The kimberlites are reported along four NW-SE-trending zones, and one ENE-WSW-trending zone. The kimberlites are macrocrystic hypabyssal Group Ia kimberlites based on their mineralogy and whole rock geochemistry. The ki...

Manuscrito ID: 30163. Recebido em: 19/09/2014. Aprovado em: 19/09/2014. ABSTRACT: New lines of geological evidence strongly suggest that the main period of hydrocarbon maturation within Assistência Formation should be Permian-Triassic, stimulated by a high geothermal gradient that also sustained various manifestations of hydrothermal activity. Three main stages of fluid/hydrocarbon migration ca...

The origin of stress dip under the apex of a standard sandpile has stimulated significant debate within the scientific community. On the other hand, it could be argued that a semipile built against a vertical wall is of more practical interest since it serves as a model of dams, dykes, and embankments. There is surprisingly little information available for the stress distribution in this case. ...

We report here new geochronological and paleomagnetic data from the 8022 10 Ma Xiaofeng dykes in South China. Together with existing data, these results suggest that Rodinia probably spread from the equator to the polar region at ca. 800 Ma, followed by a rapid ca. 90‡ rotation around an axis near Greenland that brought the entire supercontinent to a low-latitude position by ca. 750 Ma. We prop...

During the past two decades, several groups of workers have investigated the serum protein levels in patients suffering from ulcerative colitis (Tumen, Monaghan, and Jobb, 1947; Spellberg, Mosiman, and Smith, 1950; Bendandi, 1956; Bicks, Kirsner, and Palmer, 1959; Brooke, Dykes, and Walker, 1961; Soergel and Ingelfinger, 1961), and as a result of these investigations it is now widely accepted t...

Working within a complete not necessarily atomic Boolean algebra, we use a sublattice to define a topology on that algebra. Our operators generalize complement on a lattice which in turn abstracts the set theoretic operator. Less restricted than those of Banaschewski and Samuel, the operators exhibit some surprising behaviors. We consider properties of such lattices and their interrelations. Ma...