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ohmemam

Join Date:
2013-02-13

Blogs Owned

1. Geology

Geology Is Educational Website , Helps Geoscientist by adding geologic news , New researches , videos , photos and new articles .

Tags: Geology, Earth, Minerals, Researches, plate tectonics

Latest Blog Posts

  • The ups and downs of early atmospheric oxygen
    on Feb 20, 2014 in Atmosphere
    This photo shows one-billion-year-old weathering profiles from Michigan. Ancient soils like these provide evidence for low atmospheric oxygen levels through much of Earth's history. Credit: Noah Planavsky. A team of biogeochemists at the...
  • Edenite
    on Feb 20, 2014 in Minerals
    Monmouth Township, Haliburton Co., Ontario, Canada© John Sobolewksi Formula:    {Na}{Ca2}{Mg5}(AlSi7O22)(OH)2 System:    Monoclinic    Colour:    White, grey, pale to ... Lustre:    Vitreous    Hardness: 5 - 6 Member of: Edenite...
  • Selenga River
    on Feb 19, 2014 in River
    The Selenga River is a major river in Mongolia and Buryatia, Russia. Its source rivers are the Ider River and the Delgermörön river. It flows into Lake Baikal and has a length of 616 miles (992 km) (1024 km according to other sources). The Selenga...
  • Dyscrasite
    on Feb 19, 2014 in Minerals
    Samson Mine, St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany© RWMW Formula: Ag3Sb System:    Orthorhombic    Colour:    Silver White Lustre:    Metallic    Hardness: 3½ - 4 Name: From δνσκράσις, a bad...
  • New discovery may improve prediction of volcano eruptions
    on Feb 18, 2014 in volcanoes
    A 2007 eruptive column at Mount Etna producing volcanic ash, pumice and lava bombs.©Jason Bott, Christopher Berger, Pete Garza Volcanoes are among the most dangerous and least predictable natural forces on our planet. New findings may contribute to...
  • Dumortierite
    on Feb 18, 2014 in Minerals
    Dehesa, San Diego Co., California, USA© Caltech Formula: (Al,Fe3+)7(SiO4)3(BO3)O3 System:    Orthorhombic    Colour:    Blue, greenish-blue, ... Lustre:    Vitreous    Hardness: 7 Member of: Dumortierite Group > Dumortierite Sup...
  • Live : Potentially Hazardous Asteroid Zipping by Earth on Close-Approach
    on Feb 17, 2014 in Asteroids NASA
    Slooh will cover NEA 2000 EM26, a "Potentially Hazardous Asteroid", as it makes its closest-approach on Monday, February 17th starting at 6PM PST / 9PM EST / 02:00UTC (2/18)  International times: http://tinyurl.com/NEA2000EM26-LIVE . The live image...
  • Duftite
    on Feb 16, 2014 in Minerals
    Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France© Chollet Pascal Formula: PbCu(AsO4)(OH) System:    Orthorhombic    Colour:    Olive-green, grey-green; ... Lustre:    Sub-Vitreous, Resinous, Waxy, Dull    Hardn...
  • Chronology of geological events prior to the great extinction 66 million years ago
    on Feb 16, 2014 in Chronostratigraphic Geology
    Cliffs at Zumaia (Basque Country).Credit: Image courtesy of University of the Basque Country Research at the Faculty of Science and Technology of the University of the Basque Country (UPV/EHU), entitled 'Detailed Correlation and Orbital Control of s...
  • Volcanoes, including Mt. Hood, can go from dormant to active in a few months
    on Feb 16, 2014 in volcanoes
    Mount Hood, in the Oregon Cascades, doesn't have a highly explosive history.Credit: Photo courtesy Alison M Koleszar A new study suggests that the magma sitting 4-5 kilometers beneath the surface of Oregon's Mount Hood has been stored in near-solid...
  • Dufrénoysite
    on Feb 16, 2014 in Minerals
    Lengenbach Quarry, Imfeld (Im Feld; Feld; Fäld), Binn Valley, Wallis (Valais), Switzerland© Stephan Wolfsried Formula: Pb2As2S5 System:    Monoclinic    Colour:    Dark lead-grey; dark ... Lustre:    Metallic    Hardness: 3 Name:...
  • Cambrian Period
    on Feb 16, 2014 in Geologic time scale
    Late Cambrian (500Ma) ©Ron Blakey, NAU Geology The Cambrian is the first geological period of the Paleozoic Era, lasting from 541.0 ± 1.0 to 485.4 ± 1.9 million years ago (mya) and is succeeded by the Ordovician. Its subdivisions, and indeed its...
  • Revision to rules for color in dinosaurs suggests connection between color and physiology
    on Feb 13, 2014 in Dinosaur
    The "rules" allowing color reconstruction from the shape of melanin-containing organelles originate with feathered dinosaurs, and are associated with an increase in melanosome diversity. However, fuzzy dinosaurs like T. rex and Sinosauropteryx show a...
  • Ancient reptile birth preserved in fossil: Ichthyosaur fossil may show oldest live reptilian birth
    on Feb 13, 2014 in Fossils
    This is the maternal specimen with three embryos.Credit: Ryosuke Motani, doi:10.1371/journal.pone.0088640; CC-BY An ichthyosaur fossil may show the earliest live birth from an ancient Mesozoic marine reptile, according to a study published February...
  • Dravite
    on Feb 13, 2014 in Minerals
    Brumado (Bom Jesus dos Meiras), Bahia, Brazil© Verrier.Frédéric Formula:  Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH) System:    Trigonal    Colour:    Pale brown to dark-brown ... Lustre:    Vitreous, Resinous    Hardness: 7 Member of: T...
  • Dolomite
    on Feb 13, 2014 in Minerals
    Azcárate Quarry (Azkarate Quarry), Eugui, Esteríbar, Navarre, Spain© fabreminerals Formula: CaMg(CO3)2 System:    Trigonal    Colour:    Colourless, white, grey, ... Lustre:    Vitreous, Pearly    Hardness: 3½ - 4 Member of: Dol...
  • San Francisco's big 1906 earthquake was third of a series on San Andreas Fault
    on Feb 12, 2014 in earthquake Fault
    The study was the first to fully map the active fault trace in the Santa Cruz Mountains using a combination of on-the-ground observations and airborne Light Detection and Ranging (LiDAR), a remote sensing technology. The Santa Cruz Mountains run for...
  • Geophysicist teams with mathematicians to describe how river rocks round
    on Feb 12, 2014 in Rock
    A new study by the University of Pennsylvania's Douglas Jerolmack, working with mathematicians at Budapest University of Technology and Economics, has found that rocks traveling down a riverbed follow a distinct pattern, first becoming rounder, an...
  • End-Permian extinction happened in 60,000 years—much faster than earlier estimates, study says
    on Feb 10, 2014 in Fossils
    Sea scorpions, the eurypterids, were probably the largest arthropods ever to have lived. They disappeared in the world’s most devastating mass extinction to date. Credit: © John Sibbick / Natural History Museum The largest mass extinc...
  • Dioptase
    on Feb 10, 2014 in Minerals
    Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia© Joseph A. Freilich Formula: CuSiO3·H2O System:    Trigonal    Colour:    Emerald Green, blue-green Lustre:    Vitreous    Hardness: 5 Name: Named in 1797 by...

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