NDLI: Morphostructural analysis and Cenozoic evolution of Elephant Island, Southern Scotia Arc, Antarctica

Content Provider	Springer Nature Link
Author	Mink, S. Maestro, A. López Martínez, J. Schmid, T. Galindo Zaldívar, J. Trouw, R. A. J.
Copyright Year	2014
Abstract	Elephant Island, located in the vicinity of the present-day active boundary of the South Shetland Block and the Antarctic and Scotia plates, is a region of particular interest for understanding the past and present geodynamic evolution of the southern Scotia Arc. Lineament from different data sources, field-measured fractures and geomorphological evidences have been analysed in this context. The lineaments extracted from aerial photographs (1,624), from a DEM (348) and from RADARSAT-2 satellite data (1,365) indicate four dominant lineament sets with NE–SW, NW–SE, N–S and W–E strikes. All data sources identified similar lineament families, but differences in the frequency distributions and subsequently on the dominant orientations were observed. The measurements direct of fractures were obtained from 23 sites in the field at which 278 planes were measured. Fracture planes indicate main modes trending in the NNE–SSW and NNW–SSE directions and a secondary mode in the E–W. The major trends of the fracture measurements and the lineaments display a good correlation in the E–W direction. However, there is an angular variation in the azimuth values of the NNE–SSE and NNW–SSE fractures with respect to the N–S, NE–SW and NW–SE orientations of the lineaments of approximately 20°. This trend deviation may be due to the fact that mapped lineaments are composed of small fracture sets that may be related to shear fractures that cannot be distinguished at the aerial photograph or radar satellite data scales. Submerged sea-floor morphological feature orientations match the studied morphostructures on the island and the main tectonic structures in this part of the Scotia Arc. A linkage of the main lineament families to the tectonic stages from the Oligocene to the present has been proposed, taking into account the information of the orientation and sense of movement of the fractures and stresses in the Elephant Island region.
Starting Page	833
Ending Page	851
Page Count	19
File Format	PDF
ISSN	14373254
Journal	International Journal of Earth Sciences
Volume Number	104
Issue Number	3
e-ISSN	14373262
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-11-15
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Geomorphology Fractures Lineaments Neotectonics Morphostructure South Shetland Islands Geology Geophysics/Geodesy Sedimentology Structural Geology Mineral Resources Geochemistry
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences

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

Origin and evolution of the Deception Island caldera (South Shetland Islands, Antarctica)

Enhancement of sub-daily positioning solutions for surface deformation monitoring at Deception volcano (South Shetland Islands, Antarctica)

Syn- and post-collisional heat flow in the Cenozoic Eastern Alps

Crustal residence history and garnet Sm–Nd ages of high-grade metamorphic rocks from the Windmill Islands area, East Antarctica

From mantle roots to surface eruptions: Cenozoic and Mesozoic continental basaltic magmatism

Magmatic evolution of the South Shetland Islands, Antarctica, and implications for continental crust formation

Tectonics and Geomorphology of Elephant Island, South Shetland Islands

Shaping the Rwenzoris: balancing uplift, erosion, and glaciation

Joggins Cliff on Nova Scotia: the most spectacular view into Upper Carboniferous time

Morphostructural analysis and Cenozoic evolution of Elephant Island, Southern Scotia Arc, Antarctica

Similar Documents

Origin and evolution of the Deception Island caldera (South Shetland Islands, Antarctica)

Enhancement of sub-daily positioning solutions for surface deformation monitoring at Deception volcano (South Shetland Islands, Antarctica)

Syn- and post-collisional heat flow in the Cenozoic Eastern Alps

Crustal residence history and garnet Sm–Nd ages of high-grade metamorphic rocks from the Windmill Islands area, East Antarctica

From mantle roots to surface eruptions: Cenozoic and Mesozoic continental basaltic magmatism

Magmatic evolution of the South Shetland Islands, Antarctica, and implications for continental crust formation

Tectonics and Geomorphology of Elephant Island, South Shetland Islands

Shaping the Rwenzoris: balancing uplift, erosion, and glaciation

Joggins Cliff on Nova Scotia: the most spectacular view into Upper Carboniferous time

Morphostructural analysis and Cenozoic evolution of Elephant Island, Southern Scotia Arc, Antarctica