Some of my geology photos

If there’s interest, I’ll post more. Click and select “View full size” (below image, R) for full resolution. I lack formal training in geology, and would greatly appreciate comments on my proposed interpretations, but find structures such as these, on every scale, at once fascinating and beautiful.

The Betic-Rif arc of Spain and North Africa is in the news, here are some things I saw in the area:

img_6161Left: schist exposure near Benalmadena, Western Malaga province. These Permian rocks have been metamorphosed at a depth of some 40 km. Recent exposure caused by westward extension of Benamadena promenade

img_6162Above, detail; Euro coin for scale (camouflaged; sorry) slightly below and left of centre. This and nearby exposures show strong deformation, white hard (silica) intrusions, with later pinkish soft (calcite) intrusions cutting across them.

img_6164

Detail from above, while spectacularly deformed boulders of the same material (see below) are used to form the breakwater:img_6063

Go some 500 km NE by E and we are in the Alboran sea extension zone, with the tilted and faulted Neogene marine calcite rock of Alicante (al-Lucente, the shining one), on which stands the Castle of Santa Barbara, on a promontary now raised 500 ft above the sea:img_8190

img_8223

And the boulders on the coast beneath the castle, coarse limestone with shell fragments, show deformation and aggregation, as the result of recent (and ongoing) tectonic movement in this very active area.

Images by author

About Paul Braterman

Science writer, former chemistry professor; committee member British Centre for Science Education; board member and science adviser Scottish Secular Society; former member editorial board, Origins of Life, and associate, NASA Astrobiology Insitute; first popsci book, From Stars to Stalagmites 2012

Posted on January 29, 2017, in Geology and tagged , , , , , . Bookmark the permalink. 2 Comments.

  1. Interesting. Looks like a fun way to learn more about geography. I think I’ll be keeping my eyes open…

    Like

  2. There’s a marvellous program here called simply On Rocks, hosted by a geologist who travels Brazil dedicating each episode to a specific region and the astonishing formations here that virtually no one (here or abroad) knows about.

    Like

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