Earth Science Photographs

Rocks

 

Thousands of images, close-ups, microscope shots, field occurrence.

Telephone:  (+44) 01287 660076
Email:  candhspellant@yahoo.co.uk

Field geology – Sedimentary rocks.  Chevron fold structures in rocks of Carboniferous age at Millook Haven, on the north coast of Cornwall, UK.  These sediments are of marine origin and consist of alternating layers of sandstone and shale. The folding occurred during the Armorican period of orogeny.

The photographic library covers all the main groups of rocks, igneous, sedimentary and metamorphic. We have many examples of the major rock types; for example, on file there are over 30 different granites!  Rocks often provide highly photogenic subjects with colourful included crystals and particles. These features are especially apparent when seen in close-up.

 

The location shots show how rocks occur in their geological setting, emphasising their structure and the landscape with which they are associated.  Many rocks are highly contorted and folded to provide dramatic images.

Conglomerate.  A hand specimen photographed to show the way the individual  pebbles are set into the quartz matrix. The rounded grains indicate the erosive action of running water.  This example is of Tertiary age and contains flint pebbles. It is from Hertfordshire, U.K.

Granodiorite. An intrusive igneous rock photographed microscopically. This is one of the more common igneous rocks, and forms deep underground when a large mass of molten magma gradually crystallises. The picture shows the rich mosaic of silicate minerals. Petrologists frequently use thin slices of rock, such as this, for detailed microscope analysis of specimens.

All photographs are copyright C and HS Pellant.

Photographs are shown in low resolution.