Subj : ES Picture of the Day 08  2022
To   : All
From : Dan Richter
Date : Tue Mar 08 2022 11:00:32

 EPOD - a service of USRA

The Earth Science Picture of the Day (EPOD) highlights the diverse processes
and phenomena which shape our planet and our lives. EPOD will collect and
archive photos, imagery, graphics, and artwork with short explanatory
captions and links exemplifying features within the Earth system. The
community is invited to contribute digital imagery, short captions and
relevant links.


 Punta Bianca Rock Outcropping

   March 08, 2022

    DSC_9876

   Photographer:  Salvatore Cerruto

   Summary Author: Giovanni Floridia

   Traveling along the  Sicilian coast- a few kilometers southeast of
    Agrigento- visitors can admire the Trubi rock outcroppings. These
   unique and beautiful rocks are named after the term “Trubi” that in the
    Sicilian dialect indicates a land of whitish color. This specific
   landform has been given the name  Punta Bianca. Intrinsically linked
   to the surrounding  Mediterranean basin, the sea deposits layers of
   different mineral composition and morphology. These deposited layers
   represent part of a succession of an ancient open sea floor, exhumed by
   tectonic forces and eroded by the action of the wind. From their
   geologic history, important scientific information useful for
    paleogeographic and  paleoclimatic reconstruction is recorded in
   these landforms.

   History locked away in this landform goes back approximately five
   million years when a partial drying of the Mediterranean basin
   occurred, known as the “ Messinian salinity crisis”. During this
   portion of geologic history, conditions were ideal for small
    calcareous shell microorganisms called  Planktonic Foraminifera.
   The deposition of these calcareous shells combined with the underlying
   geology to produce  limestone and  marl banks. Visitors to the
   area can now admire the beauty of these white rocks as they overlook
   the  Mediterranean Sea. In addition to being a beautiful lookout
   point, the Punta Bianca also serves as protection from the strong
    Sicilian Channel currents. Photo taken June 21, 2020.

   Photo details: Nikon D800, Nikon 14-24, f/2.8 @20mm, f/10, ISO-200,
   1/30 sec.
     * Agrigento, Italy Coordinates: 37.194,13.661


Related EPODs

    Punta Bianca Rock Outcropping  Archive - Red Beach, Peru
    Archive - Cave of Kastania  Idaho's Pass of the Standing Rock
    Steep Moki Steps  New York’s Helderberg Escarpment Waterfalls
    More...

Geology Links

     *  Earthquakes
     *  Geologic Time
     *  Geomagnetism
     *  General Dictionary of Geology
     *  Mineral and Locality Database
     *  Mohs Scale of Mineral Hardness
     *  This Dynamic Earth
     *  USGS
     *  MyShake - University of California, Berkeley
     *  USGS Ask a Geologist
     *  USGS/NPS Geologic Glossary
     *  USGS Volcano Hazards Program

-
   Earth Science Picture of the Day is a service of the  Universities
   Space Research Association.

https://epod.usra.edu
 
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