Nt1330 Unit 3 Lab Report Sample

Next, we can see that the rock displays a subtle porphyritic texture with plagioclase comprising the phenocrysts. The overall texture of the surrounding groundmass is granoblastic equigranular. Under thin section we also see a weakly defined foliation evidenced in the preferential alignment of actinolite grains and to a lesser extent chlorite grains. Undulose extinction is also observed in quartz indicating the rock was subject to deformation. The normalized quartz, alkali-feldspar, and plagioclase (QAP) values of this rock indicate that it is classified as a grano-diorite according to the IUGS QAPF classification system which is consistent with the hand sample interpretation.

This study classifies the two granites under one unit named the Kilbride Granite, however, the research, which uses both radiometric dating and composition analysis, identifies them as two compositionally separate units with different ages. On the other hand, it is not wrong to say that the granites were related as they are the two latest forming members of the Eastern Red Hills complex. (Bell and Harris, 1986)

Zoning occurs in plagioclase feldspars as they crystallize out of a melt, as composition of the magma changes. These changes occur due to the formation of minerals consuming certain elements present in the magma (Gill, 2010). Plagioclase is an excellent indicator for this progressive depletion of elements, as it forms a continuous series of anorthite (calcium rich, CaAl2Si2O8) to albite (sodium rich, NaAlSi3O8) (Nesse, 2011). Because of the differences in composition, the feldspar chemistry can be used to interpret the magmatic processes which led to the production of these feldspars. The zoning pattern reflects the chemical changes, which have occurred to the magma body and can show magmatic differentiation processes such as magma mixing and changes in temperature, pressure and water content (Churikova

These are natural stones which can be shaped in form of blocks, slabs, tiles, etc marbel intoro 3

STUDY OF CERCHAR ABRASIVITY INDEX AND POTENTIAL MODIFICATIONS FOR MORE CONSISTENT MEASUREMENT OF ROCK ABRASION

The information is relatively accurate, as there will be always variables about the geological conditions. For instance, the selected sample area is Jharia, the results obtained are respected to a certain area, but it is different to the whole area of Jharia. In the meantime, the detail of geological information is necessary for the testing, but there are only limited investigations are available for the

The salt deposits found in the GoM were initially created by gradual evaporation and desiccation of salt water deposited during the mid Jurassic, confined in the region throughout the late Jurassic, and ultimately forming the Louann

The basic principle of close range (terrestrial) photogrammetry will be explained in this section. “Photogrammetry is the art and science of deriving accurate metric and descriptive information from analog and digital images” (Habib et al., 2006; Habib Ghanma Al-Ruzouq Kim a; Ayman Paper A.F. Habib, K.I. Bang, M. Aldelgawy). Wolf, 1983 defined the photogrammetry as the art, science and technology of obtaining reliable information about physical objects and environment through the process of recording, measuring and interpreting photographic images and patterns of electromagnetic radiant imagery and other phenomena. It is obviously stated, in the definition, that photogrammetry can be used 3D model of real objects for many areas of discipline such as geological and geotechnical engineering, archeology, architecture, biomedical engineering, civil engineering, and environmental science. Photogrammetry is non-intrusive, cost-effective, is ideal for recording data of a complex nature, has high level of achievable accuracy, uses digital data which results in total flexibility across a multitude of platforms, plus images may be catalog and compared over time. The 3D data from imagery reconstructed through a photogrammetric triangulation (bundle adjustment) technique using converging overlapping images from different viewpoints around the area of interest.

From Visualizing Earth Science, by Merali, Z., and Skinner, B. J, 2009, Hoboken, NJ: Wiley. Copyright 2009 by Wiley. Adapted with permission.

Fluviodeltaic sandstones of the Potoroo Formation have excellent reservoir potential (net to gross ratio of more than 70% and porosities over 35% in Potoroo 1, and well over 20% in Gnarlyknots 1A even below 3000 m), but they may lack an adequate regional seal. However, thick and laterally extensive claystone units within the Hammerhead Supersequence are likely to be present and provide

There are a myriad of minerals, gemstones, and rocks throughout the world with each having select features and characteristics that differentiate one another. When selecting a mineral to conduct a research report on, one could be drawn to Lazurite for a multitude of factors whether it be the aesthetically pleasing appearance or the various ways it has been incorporated throughout history. Therefore, one can define such a magnificent mineral by characteristics and historical application for which humans have tended to gravitate towards.

Chapter 5. Data processing and comprehensive geological interpretation of geochemical exploration in the study area

“Soil classification is the categorisation of soils into groups at various levels of generalisation according to their physical, chemical and mineralogical properties” (Boul et al 2011:34). The formation and subsequently the classification of soil has been at the forefront of geological scientific research since its emergence in the 19th Century.

Spaced and continuous cleavages are the most common S1foliations in the Bila area. The intensity of rocks affected by foliations are controlled by the type of the rock and degree of metamorphism/deformation occurred during their formation. This S1 foliations are mostly developed in the metasedimentary and metaultramafic (talc schist) rock groups. Petrographic analysis also show the presence of well aligned minerals such as chlorite, mica, feldspar, actinolite and talc which were define the development of strong S1foliations in the most rocks of the area (Fig.4.3C and D). Foliation (S1) in the area is mostly striking NNE to NE with gently to vertical dipping WNW and SE as shown in the stereographic projection (Fig.4.4). Most of the time the (S1) foliation in this area was parallel to the axial plane of F1 folding in the area.

The surface of all specimens is test, either in the laboratory or in the field, should be smooth to the touch and free of joints, fractures, or other obvious localized discontinuities to a depth of at least 6 cm. In situ rock shall be flat and free of surface grit over the area covered by the plunger. If the surface of the test area is heavily textured, grind it smooth with the abrasive stone.