Photo of flow-top breccia exposed close to Kurundwad (Fig. ). White amygdales are visible, while individual fragments and horizontal joints filled with calcium carbonate have been marked for clarity. b Central zone (~25 m ) of a thick flow exposed in a quarry close to Kurundwad (Fig. ). Note the relatively well-developed columnar jointing and the considerable extent of the flow in this exposure. c Basal zone of a flow exposed in the Dhadgaon area (Fig. ). Note the smooth nature of the base. X refers to a zone of closely spaced joints, while Y indicates dark glassy bands
Although some flows do display preserved crusts, many are
characterized by reddened (oxidized), rubbly tops (Fig. 12 a)
or flow-top breccia, as observed around Kurundwad and Satara.
The flow-top breccia is usually constituted of irregular, highly
vesicular/amygdaloidal fragments in a matrix of fine, often glassy
material (Fig. 12 a) and ranges from 0.85 to 5.00 m
This is usually the thickest part of the flow (Fig. 12 b); it
is often well jointed and displays columnar jointing (sometimes
This zone has a variable thickness and often shows close spaced
jointing and a bluish-black sheen as seen in (Fig. 12 c).
It is worth noting that no evidence of scouring of the base has
been observed in any of the flows (e.g., Fig. 12 c)..
Viewing this image requires a subscription. If you are a subscriber, please log in.
This image is from the article titled "Morphology and emplacement of flows from the Deccan Volcanic Province, India"
(from Bulletin of Volcanology), which is copyrighted by Springer-Verlag. For more information on the
copyright for this image, please refer to the full image caption and to the
The image is being made available for non-commercial purposes for subscribers to SpringerImages. For more information on what you are allowed to do with this image, please see our copyright policy.
To request permissions to use any copyrighted material, please visit the source document.
Report a copyright concern regarding this image.
Log in or register to save your favorite images and download them as high-quality PowerPoint or PDF files.
Log in or register to save your search criteria.
© Springer, part of Springer Science+Business Media.
Remote Address: 18.104.22.168 Server: 21