Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | Lin, Wei Wang, QingChen Wang, Jun Wang, Fei Chu, Yang Chen, Ke |
| Copyright Year | 2011 |
| Abstract | Unlike most Precambrian cratons that have thick sub-continental lithospheric roots, the Archean lithosphere beneath the North China Craton is thin (reduced from 200 km to about 80 km), and has been replaced by a geochemically juvenile lithospheric mantle. This is a unique regional geological event, which has attracted worldwide attention. In the North China Block, Late Mesozoic extensional tectonics is evident by low-angle detachment faults, syntectonic plutons bounded by ductile faults, metamorphic core complexes (MCC) and widespread Jurassic to Cretaceous half-grabens filled by continental terrigenous deposits and volcanic rocks. At a regional scale, these structures share the same NW-SE extensional direction, while maintaining their own individual kinematics. In other words, the MCC feature a top-to-the-NW sense of shear, and syntectonic plutons are typified by a top-to-the-SE shearing deformations. Geochronological results indicate that the extensional structures were formed between 130–120 Ma. These extensional events lead to magmatic rock emplacement, distributed at the footwall of the detachment faults. Two different exhumation stages can be identified based on regional structural and magmatic interpretation: a Jurassic slow or negligible exhumation and a Cretaceous fast one assisted by normal faulting. These two cooling stages correspond to distinct geodynamic processes that occurred during the Jurassic and Cretaceous. Extensional tectonics appear to have been insignificant before the Early Cretaceous, and the process may be demonstrated by partial melting of the crust. The second stage, dominated by an extensional regime, developed after ca 120 Ma, and is tentatively correlated with crustal extension caused by lithospheric removal of the North China Craton. |
| Starting Page | 843 |
| Ending Page | 857 |
| Page Count | 15 |
| File Format | |
| ISSN | 16747313 |
| Journal | Science in China Series D: Earth Sciences |
| Volume Number | 54 |
| Issue Number | 6 |
| e-ISSN | 18691897 |
| Language | English |
| Publisher | SP Science China Press |
| Publisher Date | 2011-05-13 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Liaodong Peninsula massif geometry and kinematics Late Mesozoic extensional tectonics destruction of the North China Craton Earth Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Earth and Planetary Sciences |
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...
|