Refine your search
Collections
Co-Authors
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Gadekar, D. R.
- Some Aspects of Diagenesis of the Broach Group of Tertiary Sediments Around Jhagadia, District Broach, Gujarat
Abstract Views :208 |
PDF Views:2
Authors
Affiliations
1 Dept. of Geology, M. S. University of Baroda, Baroda 390002, IN
1 Dept. of Geology, M. S. University of Baroda, Baroda 390002, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 21, No 9 (1980), Pagination: 440-445Abstract
The supra-Trappean Broach Group of Tertiary sediments show evidences of a variety of diagenetic changes. The arenaceous sediments of the Vagalkhod Formation contain proofs of recrystallisation of sparry and micrite cement indicating pore-filling and shallow depth of burial. The calcareous sediments of the Bhilod Formation (Nummulitics) show limonitisation suggesting low temperature metasomatism and precipitation in shallow waters. The argillaceous rocks of the Tarakeshwar Formation reveal authigenic sparite, also indicative of shallow burial. Silica cementation, authigenesis and limonitisation are some of the important diagenetic changes discernible in the overlying rudaceous Babaguru Formation. These changes suggest redoxomorphic stage, precipitation from gel and epidiagenesis. The calcareous sediments of the Kand Formation reveal recrystallisation of spa rite from micrite, which may suggest diagenetic transformation. The arenaceous sediments of the Jhagadia Formation bear evidence of the activity of carbonate cementation ~nd replacement, which may perhaps indicate locomorphic stage of diagenesis.- Sedimentary Structures of the Tertiary Rocks Around Tarakeshwar, District Surat, Gujarat and their Diagenetic Significance
Abstract Views :164 |
PDF Views:128
Authors
Affiliations
1 Department of Geology, Maharaja Sayajirao University of Baroda, Baroda 390 002, IN
1 Department of Geology, Maharaja Sayajirao University of Baroda, Baroda 390 002, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 27, No 2 (1986), Pagination: 214-219Abstract
Tertiary rocks are exposed around Tarakeshwar, Surat district, Gujarat. These are mainly Eocene sediments which are predominantly clastic and are overlain by carbonate sediments. Several interesting sedimentary structures are revealed by calcareous claystones associated with fossiliferous limestones; among them concretions, septarian nodules and imatra stones are striking. These secondary sedimentary structures are developed due to chemical changes effected during diagenesis of the fine grained detrital sediments, probably involving precipitation of calcium carbonate in the pores of silt beds. The sediments were deposited in a near-shore environment of a shallow Eocene sea.- Sedimentary Structures in the Tertiary Rocks of South Gujarat and Their Environmental Significance
Abstract Views :165 |
PDF Views:2
Authors
Affiliations
1 Department of Geology, M. S. University of Baroda, Baroda 390002., IN
1 Department of Geology, M. S. University of Baroda, Baroda 390002., IN