Reconnaissance Geological Study
Reconnaissance geological study identifies areas of enhanced mineral potential and aims to look for prospecting targets and identify mineralized areas worthy of further investigation towards deposit identification. Its include all desk study data and field visits of technical team to recording the geological field observations to identify the main types of rocks, geological structures and general geological properties of the study area in addition to check the infrastructures and availability of logistics for the project. The information gathered from a reconnaissance program often allows for a more targeted approach to subsequent phases of exploration and in turn increases the effectiveness of its planning.
Geological field mapping is the primary method used for understanding and interpreting regional and local geology. A good quality mapping campaign can be conducted rapidly and is the cheapest form of exploration.
Archean has found that field mapping is often overlooked and undervalued as an exploration method. Field mapping can be physically and mentally challenging. Hundreds of questions arise, dictating that hundreds of decisions must be made during the course of a single day. Where should I go? What unit is this? Why does this bed abruptly end? Thus, field mapping is the ultimate application of the scientific method – a good field mapper is constantly testing predictions about the next outcrop and evaluating multiple hypotheses about the structure.
Archean has mapping team expertise carryout a special-purpose geological maps. Experience of mapping in jungle, savannah, desert, high altitude, in wide ranging geological terranes and for multiple commodities, including gold, base metals and industrial mineral deposits.
Structural geology plays an important role in mineral exploration. Understanding structures is the key to interpreting crustal movements that have shaped the present terrain and indicate potential locations of targets.
Traditionally geological mapping program should include main structural elements but when structurally controlled deposits a detailed structural study program become very essential.
Structural analysis proceeds through three linear stages: 1) description of the structural geometry of a deformed field area (bedding attitudes, planar fabrics, linear fabrics, folds, faults, joints, etc.); 2) kinematic analysis (movements responsible for the development of structures [translation, rotation, distortion, and dilation] and relative timing); and 3) dynamic analysis (interpretation of forces and stresses responsible for the deformation). Stage 1, descriptive structural analysis, is the product of careful field mapping. Although maps are two-dimensional sheets of paper, they portray the geology in three-dimensions. This is because most structures tend to dip or plunge and, therefore, one can infer the direction and degree of dip or plunge through outcrop patterns.
Mineralogical & Ore Microscopy Studies
The study of opaque minerals in polished section using the polarizing reflected-light microscope is the most important technique for the identification and characterization of the opaque phases in a sample and the textural relationships between them. Since most metalliferous ores are comprised of opaque minerals, this study has been traditionally known as ore microscopy and has found its greatest applications in the study of mineral deposits. The corresponding polished thin sections were studied for ore and rock-forming minerals and their textural relationships by reflected and transmitted light microscopy. The detailed analysis of minerals by optical mineralogy in thin section and the micro-texture and structure are critical to understanding the type, origin and tectonic setting of the rock. Archean is undertaken mineralogical & ore Microscopy studies by outsource certified laboratories.