Unconformity - Gallery

Gallery

  • There is a billion-year gap in the geologic record where this 500-million-year-old dolomite nonconformably overlies 1.5-billion-year-old rhyolite.

  • The "Taconic Unconformity" near Catskill, NY. This angular unconformity separates the Austin Glen Formation (Ordovician) from the overlying Rondout Formation (Silurian) and Manlius Formation (Devonian)

  • Eemian disconformity in a fossil coral reef on Great Inagua, The Bahamas. Foreground shows corals truncated by erosion; behind the geologist is a post-erosion coral pillar which grew on the disconformity after sea level rose again.

  • Hutton's angular unconformity at Siccar Point where 345 million year old Devonian Old Red Sandstone overlies 425 million year old Silurian greywacke.

  • Disconformity with the Lower Cretaceous Edwards Formation overlying a Lower Permian limestone; hiatus is about 165 million years; Texas.

  • Nonconformity between the Pennsylvanian Fountain Formation (left) and Precambrian Gneiss (right) at Red Rocks Park, near Golden, Colorado

  • Disconformity (at the hammer) between underlying Mississippian Borden Formation and overlying Pennsylvanian Sharon Conglomerate, on US Rt. 35, near Jackson, Ohio

  • Angular unconformity on the west coast of Point Loma, California, facing north

  • Angular unconformity of Shawangunk Formation overlying Martinsburg Formation at railroad cut near Otisville, NY

Read more about this topic:  Unconformity

Famous quotes containing the word gallery:

    “I should like to have seen a gallery of coronation beauties, at Westminster Abbey, confronted for a moment by this band of Island girls; their stiffness, formality, and affectation contrasted with the artless vivacity and unconcealed natural graces of these savage maidens. It would be the Venus de’ Medici placed beside a milliner’s doll.”
    —Herman Melville (1819–1891)

    “Each morning the manager of this gallery substituted some new picture, distinguished by more brilliant or harmonious coloring, for the old upon the walls.”
    —Henry David Thoreau (1817–1862)

    “I never can pass by the Metropolitan Museum of Art in New York without thinking of it not as a gallery of living portraits but as a cemetery of tax-deductible wealth.”
    —Lewis H. Lapham (b. 1935)