Search results

  1. megalodon

    Bornite

    Bornite is a sulfide mineral with a chemical composition Cu5FeS4. Bornite has a brown to copper-red color on fresh surfaces that tarnishes to iridescent shades of blue, purple, red, green and yellow. It is easily recognized due to this property and is commonly called as peacock ore or peacock...
  2. megalodon

    Biotite

    Biotite is a common mineral group of phyllosilicate minerals within the mica group. They are black mica minerals commonly found in igneous and metamorphic rocks. Biotite group includes annite, phlogopite, siderophyllite, fluorophlogopite, fluorannite, eastonite, and many others. They are all...
  3. megalodon

    Beryl

    Beryl is a silicate mineral composed of beryllium aluminium cyclosilicate with the chemical formula Be3Al2Si6O18. It is relatively rare and usually found in igneous and metamorphic rocks. Pure beryl is colorless, but is usually found in green, blue, yellow, and rarely red colors. It can also be...
  4. megalodon

    Baryte

    Baryte (also called as Barite) is a mineral composed of barium sulfate (BaSO4). It is usually white or colorless. Baryte has extremely high specific gravity for a nonmetallic mineral which makes it suitable for a wide range of manufacturing, industrial, and medical uses. It is also the main...
  5. megalodon

    Azurite

    Azurite is a soft, deep-blue copper carbonate hydroxide mineral produced by weathering of copper ore deposits. It is not a common or abundant mineral but is well-known for its characteristic deep blue to violet-blue color. Azurite has a chemical composition of Cu3(CO3)2(OH)2. It has been used as...
  6. megalodon

    Augite

    Augite is a common rock-forming pyroxene mineral that commonly occurs in mafic and intermediate igneous rocks such as basalt, andesite, gabbro, and diorite. It is also found in ultramafic rocks and in some metamorphic rocks that form under high temperatures. Augite is usually green, black, or...
  7. megalodon

    Image Processing – Correction

    Radiometric Correction As any image involves radiometric errors as well as geometric errors, these errors should be corrected. Radiometric correction is to avoid radiometric errors or distortions, while geometric correction is to remove geometric distortion. When the emitted or reflected...
  8. megalodon

    Weathering and Erosion

    Weathering and erosion are the processes responsible for disintegration, transportation, and deposition of rocks. These processes occur when the rocks are exposed to atmosphere and biosphere. Weathering Weathering is a process of weakening and dissolving rock minerals through physical...
  9. megalodon

    Bowen’s Reaction Series

    In the early 1900’s, N. L. Bowen and others at the Geophysical Laboratories in Washington D.C. began experimental studies into the order of crystallization of the common silicate minerals from a magma. The idealized progression which they determined is still accepted as the general model for the...
  10. megalodon

    Porosity

    The porosity of a rock is the fraction of the volume of space between the solid particles of the rock to the total rock volume. Space includes all pores, cracks, vugs, inter and intra-crystalline spaces. The porosity is conventionally given the symbol f and is expressed either as a fraction...
  11. megalodon

    Which ocean has more numerous volcanoes around it?

    (A) Indian (B) Atlantic (C) Arctic (D) Pacific Volcanic eruptions occur only in certain places and do not occur randomly. The tectonic plates form Earth's crust as they float on a hot mantle. These rigid plates collide, spread apart or slide past each other. The volcanoes form due to such...
  12. megalodon

    Who first proposed the term Isostasy?

    (A) Sir George Airy (B) Clarence Dutton (C) R. A. Daly (D) Archdeacon Pratt Isostasy or isostatic equilibrium is the state of gravitational equilibrium between Earth's crust and mantle such that the crust floats over mantle at an elevation depending on its thickness and density. This concept...
  13. megalodon

    What is the study of landforms, their processes, form and sediments called?

    (A) Geomorphology (B) Geomythology (C) Geophysics (D) Glaciology Geomythology is the study of alleged references to geological events in mythology. A geologist at Indiana University, Dorothy Vitaliano, first coined the term in 1968. It's not a mainstream branch of geology and is relatively...
  14. megalodon

    When was the first Geological map of Great Britain published?

    (A) 1807 (B) 1812 (C) 1815 (D) 1821 William Smith knew how to draw the vertical extent of the rocks but didn't know how to display them horizontally. He found a map showing types of soils and vegetation around Bath and their geographical extent with different types colored. He drew a crude...
  15. megalodon

    Who is known as the Father of modern Geology?

    (A) Abraham Gottlob Werner (B) James Hutton (C) Florence Bascom (D) William Smith Abraham Gottlob Werner (25 September 1749 – 30 June 1817) was a German geologist who proposed a theory about the stratification of the Earth's crust. He is remembered for his theory on chronological succession in...
  16. megalodon

    Arsenopyrite

    Arsenopyrite is an iron arsenic sulfide (FeAsS). It is the most abundant arsenic-bearing mineral and the primary source of arsenic metal. It is often associated with other sulfide minerals in igneous, sedimentary and metamorphic rocks. Arsenopyrite is widely distributed but is usually overlooked...
  17. megalodon

    How to get into paleontology as a career on geology?

    You can pursue Bachelors and Masters degree in Geology. Paleontology specialization is very rare and very few colleges offer it. Generally, people complete Masters in Geology and then do Ph.d. in Paleontology. The Biology background is helpful in studying Paleontology as the identification &...
  18. megalodon

    Apatite

    Apatite is a group of phosphate minerals with similar chemical compositions and physical properties. It is often mistaken for other minerals. It has a consistent hardness and is used as an index mineral for hardness 5 in Mohs scale. Apatite forms under wide variety of conditions and is found in...
  19. megalodon

    Anhydrite

    Anhydrite is an evaporite mineral that forms due to the evaporation of sea water and occurs in sedimentary basins. The conditions of occurrence are critical as Anhydrite transforms into Gypsum by the absorption of water. This transformation is reversible with Gypsum forming Anhydrite with around...
  20. megalodon

    Andalusite and Chiastolite

    Andalusite is an Aluminosilicate index mineral which provides the conditions of formation of its host rock. It is a common metamorphic mineral and trimorphic with Kyanite and Sillimanite. They occur under different temperature-pressure regimes and are therefore rarely found together in the same...

About us

  • Geology Buzz is a Geology forum for Geologists and Earth Science community. Get Geology News, Jobs, Courses, Maps, Photos, and articles from students and professionals. The forum covers multiple fields of Earth Science like Geology, Geophysics, Geochemistry, Hydrology, Geography, Engineering Geology, Petrology, Mineralogy, Structural Geology, Paleontology, and Environmental Geology. We have a community of Geologists, Geophysicists, Mining Engineers, Gemologists, Petroleum Engineers, and many others. Join Now!

Quick Navigation

User Menu