Pre-historical pyroclastic and lava flow showing guarded bedding and penecontemporaneous deformation developed due to gravity collapse of ejected pyroclastic bombs  from the explosive cinder cone, Barren volcano.

About 100 m thick section of pyroclasts exposed on the inner side of prehistoric northern caldera wall, Barren Volcano.

Inter-bedded agglomerate bed, finely laminated tuff and lava flow of varying thickness and colour suggesting episodic nature of pyroclastic and lava flow deposited under water and sub - aerial conditions during the Plio-Piestocene (?) evolution of Barren Volcano, now exposed above water as volcanic island. Left image is from inner side of southern caldera wall and right image is from the inner side of northern caldera wall. Also seen is the recent ash flow abutting against the vertical scarp face of the collapsed caldera (Closer view)

Inter-bedded agglomerate bed, finely laminated tuff and lava flow of varying thickness and colour suggesting episodic nature of pyroclastic and lava flow deposited under water and sub - aerial conditions during the Plio-Piestocene (?) evolution of Barren Volcano, now exposed above water as volcanic island. Left image is from inner side of southern caldera wall and right image is from the inner side of northern caldera wall. Also seen is the recent ash flow abutting against the vertical scarp face of the collapsed caldera.

Simple sigmoidal dune, Rub’ al Khali Desert of the Southern Arabian Peninsula.