The Santa Lúcia copper-gold deposit lies in the southeastern portion of Carajás Mineral Province, along NW-SE splays Fault. is hosted by a rhyolitic subvolcanic rock, which crosscut pegmatite intrusions. paragenetic evolution at encompasses an early stage chlorite alteration, followed potassic alteration with microcline, greisenization (quartz-muscovite-tourmaline), ore precipitation, and late ...

In the Tropics more small drops and less large drops were found in oceanic precipitation than in continental precipitation at the given reflectivity. Similarly, more small drops and less large drops were found in remnants of a tropical cyclone than in frontal precipitation in mid-latitude site at the same reflectivity. The presence of small drops was higher in deep convective regime than in str...

Structural analysis of remotely sensed data provides a method of assessing the structural significance of regional metallogenesis in the Dehaj area as the northwestern part of the Kerman porphyry Cu belt. This belt is consisted of dominant Eocene volcanics and the Dehaj type subvolcanic intrusives. In the study area, geologically, Cu-mineralization is hosted by the Kuh-e-Panj type subvolcanic i...

pb-zn deposits in the kurdistan region, northern iraq, have occurred mainly as a stratabound and open-space filling ore bodies. they are hosted by dolostone and dolomitic-limestone of platform carbonates. the ore deposits at the studied dure and lefan areas are respectively hosted by kurra chine (upper triassic) and bekhme (upper cretaceous) formations. pyrite, sphalerite and galena are the maj...

We live in a modern industry based society where automation undoubtedly is the key for success. The technology has been changing over the last decades towards full control systems and the requirement specifications for Safety Instrumented Systems (SIS) forms the central network for the process risk and hazard assessment to be carried out. Process Control has evolved very much in the last years....

Oceanic crust is a massive potential habitat for microbial life on Earth, yet our understanding of this ecosystem is limited due to difficulty in access. In particular, measurements of rates of microbial activity are sparse. We used stable carbon isotope incubations of crustal samples, coupled with functional gene analyses, to examine the potential for carbon fixation on oceanic crust. Both sea...

Conference hosted by: The Fletcher Geology Club

1. Introduction Warm stratiform and stratocumulus clouds cover enormous areas of the Earth and play a crucial role in the radiative balance of the Earth and contribute significantly to precipitation. Microphysical properties of stratiform clouds were measured by research aircrafts in course of several national and international field experiments. Using these data, many useful statistical result...