Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | El Anwar, Esmat Ahmed Abou |
| Copyright Year | 2014 |
| Abstract | Dolostones of Um Bogma Formation, Lower Carboniferous, have been possibly originated due to two different fluids. The main fluid source is related to meteoric water. The second fluid originated from deeper hydrothermal sources ascended through faults. The diagenetic features of Um Bogma Formation show many processes with conspicuous effects, including dolomitization, neomorphism, mechanical and chemical compaction, as well as it characteristics with stylolites, sutured and concave–convex contacts between grains. Based on mineralogical composition and petrography, the diagenetic environments are distinguished into shallow marine, near surface meteoric and burial environments. Dolostones in the studied area are possibly subjected to chemical and biochemical weathering. Um Bogma dolostones are nearly stoichiometric and ordered. Mineralogical and geochemical studies indicated that dolomite crystals were deposited in mixing zone of marine and meteoric water. In addition, it is formed in the near-surface oxidizing environment. The Sr distribution coefficient and Y content of the studied dolostones indicated that they are formed in temperature >110 and <150 °C. The CF (Contamination factor) and Igeo (Geo-accumulation index) have doubtlessly indicated that the Um Bogma dolomite rocks are polluted especially for Fe, Rb, Co, Cu, W, S, Ba, Zn, Zr and As. The studied dolomites of Area 45 and Um Bogma Mine sections are characterized by enrichment of Co and Cu, which indicated their deposition in marine environment. The studied dolomite of Um Bogma Mine is characterized by the enrichment of Zn, W, Ba, Mn, Ti and As which derived from hydrothermal solution. Consequently, the dolostones of the Um Bogma Formation are similar to those in Cayman Formation, Indies. |
| Starting Page | 239 |
| Ending Page | 250 |
| Page Count | 12 |
| File Format | |
| ISSN | 08912556 |
| Journal | Carbonates and Evaporites |
| Volume Number | 29 |
| Issue Number | 3 |
| e-ISSN | 18785212 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2014-03-20 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Egypt Um Bogma Dolostones Genesis Geochemistry Contamination Geology Mineral Resources Mineralogy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Geochemistry and Petrology |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|