Accretionary lapilli from the Azuara and Rubielos de la Cérida impact structures (Spain)

Impact spallation in nature and experiment

An Impact Crater Chain in Northern Spain:

Ries impact structure (Germany):
Bunte Breccia ejecta resting on scoured, Upper Jurassic limestone

Azuara impact structure (Spain):
Evidence of shock fluidization of competent limestones

Rubielos de la Cérida impact structure (Spain):
Impact-induced internal rock polish.

Azuara impact structure (Spain):
Curved joint sets: indication of impact-induced fracturing.

Azuara impact structure (Spain), Ries impact structure (Germany):
Impact as a geologic process

Rubielos de la Cérida impact structure (Spain):
Impact melt glass from the central uplift

Rubielos de la Cérida impact structure (Spain):
At the crater floor

Azuara impact structure (Spain) - Ries impact structure (Germany):
Shortly after the impact

Ries impact structure (Germany); Azuara and Rubielos de la Cérida impact structures (Spain):
Structural peculiarities

Rubielos de la Cérida impact structure (Spain):
Megabreccia of the entral uplift

Azuara impact structure (Spain):
Shock metamorphism

Rubielos de la Cérida impact structure (Spain):
Megabrecciation and carbonate ? melt rocks