نتایج جستجو برای: mineral mapping
تعداد نتایج: 263950 فیلتر نتایج به سال:
This papaer reports on mapping in a portion of NTS 94G/4W (Mt. McCusker west half), conducted during the month of July 1998 (Figure 1). This area, only accessible by air, lies 80 kilometres due west of the small settlement of Pink Mountain, 151 kilometres north of Fort St. John on Highway 97. The mapping program is part of the Central Foreland NATMAP Project, led by Mike Cecile of the Geologica...
CanaddBritish Columbia Mineral Development Agreement, this area was selected for more detailed analysis than presently available. During the 1986 field season fieldwork was centred on the Cowichan Lake area (Figures 3-9-1 and 3-9-21, Access in the area is provided by an extensive network of logging roads in various states of upkeep. Roadcuts provide most ofthe exposure for mapping; rock units a...
Airborne geophysical systems have been in use since 1943 (Hildenbrand et al., 1990). These systems used airborne magnetometers for submarine detection and geophysical mapping. Airborne electromagnetic systems were introduced in the 1950s (Barringer et al., 1990) for mineral exploration. These early magnetic and electromagnetic systems were mounted on fixed wing aircraft. In the 1960s helicopter...
Sedimentary rocks contain a unique record of the evolution Earth system. Deciphering this requires robust understanding identity, origin, composition, and post-depositional history individual constituents. Petrographic analysis informed by Scanning Electron Microscope - Energy Dispersive Spectroscopy (SEM-EDS) mineral mapping can reveal morphology petrological context each imaged grain, making ...
The Dolatabad area located in SE Iran is a well-endowed terrain owning several chromite mineralized zones. These chromite ore bodies are all hosted in a colored mélange complex zone comprising harzburgite, dunite, and pyroxenite. These deposits are irregular in shape, and are distributed as small lenses along colored mélange zones. The area has a great potential for discovering further chromite...
[1] Each summer large amounts of mineral dust from the Sahara are transported across the Atlantic and arrive at the Caribbean with far-reaching implications for climate in this region. In this paper we analyze summer season interannual variability of North African mineral dust over the Caribbean using the Total Ozone Mapping Spectrometer (TOMS)/Nimbus 7 (1979–1992) and TOMS/Earth Probe (1998–20...
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