Ellesmerian and Eurekan fault tectonics at the northern margin of Ellesmere Island (Canadian High Arctic)

Piepjohn, Karsten; Gosen, Werner von; Läufer, Andreas; McClelland, William C.; Estrada, Solveig

doi:10.1127/1860-1804/2013/0007

Cited by 36 publications

(70 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, granitic plutons were emplaced during this event (Trettin, 1991b). Pearya was thrust over deep-water sediments of the Franklinian Basin during its approach and docking against the passive margin of Laurentia after the Late Silurian and before the late Early Carboniferous (Piepjohn et al, 2013).…”

Section: Geological Overview Of the Northeast Canadian Arcticmentioning

confidence: 99%

“…The development of the Franklinian Basin was terminated by the Late Devonian to Early Carboniferous Ellesmerian Orogeny which caused intense crustal shortening and kilometre-scale folding of the entire basin succession (e.g., Trettin, 1991a;Piepjohn et al, 2008Piepjohn et al, , 2013.…”

Section: Geological Overview Of the Northeast Canadian Arcticmentioning

confidence: 99%

“…It was caused by the plate tectonic reorganisation during the simultaneous seafloor spreading in the Northeast Atlantic and Labrador Sea-Baffin Bay between c. 56 and 34 Ma, the related northward motion of the Greenland plate, and the opening of the Eurasia Basin starting c. 56 Ma ago (e.g., Menzies, 1982;Srivastava & Tapscott, 1986;Tessensohn & Piepjohn, 2000;Piepjohn et al, 2013).…”

Section: Geological Overview Of the Northeast Canadian Arcticmentioning

confidence: 99%

“…The volcanogenic Late Albian to Cenomanian Strand Fiord Formation of Axel Heiberg Island consists mainly of subaerial basalt flows that reach a thickness of almost 800 m (Ricketts et al, 1985;Embry & Osadetz, 1988;Embry, 1991 Piepjohn et al, 2013) and the Pearya Shear Zone ( Fig. 3B; von .…”

Section: The Halip-related Cretaceous Magmatism Of the Canadian Arcticmentioning

confidence: 99%

“…The geological history of the Eurasia Basin is well recorded by parallel aeromagnetic survey were carried out during CASE expeditions (Circum-Arctic Structural Events) of the German Federal Institute for Geosciences and Natural Resources (BGR) in cooperation with the Geological Survey of Canada (GSC) to understand the structural architecture of the North American passive continental margin. Geological fieldwork in the Yelverton Bay area including sampling for petrographical, geochemical and geochronological analyses was performed in 2000and 2008Piepjohn et al, 2013). The joint helicopter-borne magnetic survey in 2008 covered the coastal area of Ellesmere Island to the east of the previous Canadian survey over Axel Heiberg Island and adjacent marine areas in 1991 ( Fig.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Multistage Cretaceous magmatism in the northern coastal region of Ellesmere Island and its relation to the formation of Alpha Ridge – evidence from aeromagnetic, geochemical and geochronological data

Estrada¹,

Damaske²,

Henjes‐Kunst³

et al. 2016

NJG

Self Cite

View full text Add to dashboard Cite

The poorly studied Alpha-Mendeleev Ridge of the Amerasia Basin of the Arctic Ocean is covered by a large magnetic high and interpreted to be part of the Cretaceous High Arctic Large Igneous Province (HALIP). At the north coast of Ellesmere Island, in the Yelverton Bay area, this characteristic magnetic high overlaps the shelf and the coastal area. Results of aeromagnetic surveys, geological fieldwork, geochronological, geochemical and Sr-Nd isotope analysis were combined to study the tectonic history of this part of the Canadian Polar margin. The basement, consisting of metamorphic rocks of the Pearya Terrane, was strongly affected by HALIP-related magmatism that is responsible for characteristic positive magnetic anomaly patterns. A broad magnetic high that can be traced to the Alpha Ridge covers the shelf and coastal areas of Yelverton Bay. It is caused by a voluminous intrusion into the continental crust at a depth of ca. 6-15 km. A chain of small positive magnetic anomalies crosses Wootton Peninsula from SW to NE and then curves into a NNE-SSW trend. It follows the coastline onshore and offshore and superimposes the southern and eastern margins of the broad magnetic high. On land, the anomaly chain covers fault-bounded outcrops of the Wootton Intrusive Complex (WIC) and the Hansen Point Volcanic Complex (HPVC), indicating that the entire anomaly chain is associated with a volcanogenic sequence. Rhyodacite that forms large parts of the HPVC east and west of Yelverton Bay extruded between c. 104 and 97 Ma (LA-ICP-MS U-Pb zircon ages). It originates from a tholeiitc suite and is probably genetically related to the deep intrusion. The HPVC together with the rhyodacite has an age range of c. 104-74 Ma and includes the mildly alkaline WIC (93-92 Ma). The northern coast of Ellesmere Island shows some characteristic features of a magma-rich rifted margin indicating an extensional evolution parallel to the North American margin between the openings of the Canada Basin and the Eurasian Basin.

show abstract

Section: Geological Overview Of the Northeast Canadian Arcticmentioning

confidence: 99%

Section: Geological Overview Of the Northeast Canadian Arcticmentioning

confidence: 99%

Section: Geological Overview Of the Northeast Canadian Arcticmentioning

confidence: 99%

Section: The Halip-related Cretaceous Magmatism Of the Canadian Arcticmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Multistage Cretaceous magmatism in the northern coastal region of Ellesmere Island and its relation to the formation of Alpha Ridge – evidence from aeromagnetic, geochemical and geochronological data

Estrada¹,

Damaske²,

Henjes‐Kunst³

et al. 2016

NJG

Self Cite

View full text Add to dashboard Cite

show abstract

A reconstruction of the Eurekan Orogeny incorporating deformation constraints

2017

View full text Add to dashboard Cite

The Eurekan Orogeny records Paleogene convergence between Greenland and the Canadian Arctic. The complexity of the region, well represented by the disputed magnitude of Cenozoic sinistral displacement of Greenland relative to Ellesmere Island, stems from the simultaneous evolution of multiple tectonic regimes, as well as overprinting of later tectonic activity. Presented here is a plate model of regional crustal deformation constructed with the interactive GPlates software that enables an evaluation of previous reconstructions of the Eurekan Orogeny. This model is built upon a synthesis of published geological and geophysical data and their interpretations. It incorporates two phases of deformation from ~63 to 35 Ma. Phase 1, ~63 to ~55 Ma, involves ~85 km of Paleocene extension between Ellesmere and Devon Island, extension of ~20 km between Axel Heiberg and Ellesmere Island, and ~85 km of sinistral strike slip along the Nares Strait/Judge Daly Fault System, matching a range of 50–100 km indicated by the offset of marker beds, facies contacts, and platform margins between the conjugate Greenland and Ellesmere Island margins. Phase 2, ~55 to 35 Ma, results in total east‐west compression of ~30 km and ~200 km of north‐south compression across Ellesmere Island. This model confirms, for the first time, that key observations from subregions deformed by the Eurekan Orogeny are compatible on a broad scale. We have also identified potential problem areas in southwestern Ellesmere Island that are less compatible with a best fit model, given current constraints. This deforming plate model offers a platform and base model for future research.

show abstract

Imaging the plate boundary between Greenland and North America within the Kane Basin by means of geophysical data

Ehrhardt

Schnabel

Damm

et al. 2016

Geophysical Research Letters

Self Cite

View full text Add to dashboard Cite

The Nares Strait is a waterway separating NW Greenland and North America. The nature of the Nares Strait has been subject of discussion for decades, especially if it represents a transform fault that compensated the opening of the Baffin Bay in the Paleogene as Alfred Wegener supposed in 1912. The Kane Basin in the central part of Nares Strait provides an opportunity to cross the proposed fault. Geophysical data were acquired in 2001 and 2010, including among others multichannel and wide‐angle seismic data. The eastern part of the Kane Basin is characterized by a solid platform most likely representing a continuation of the Paleoproterozoic Inglefield‐Mobile‐Belt (Greenland). In the western part, a sedimentary basin with northwestward tilted and eroded layers of Cretaceous age can be resolved. The transition between those two units shows the plate boundary between Greenland and North America and can be considered as a relic of the Wegener Fault.

show abstract

Ellesmerian and Eurekan fault tectonics at the northern margin of Ellesmere Island (Canadian High Arctic)

Cited by 36 publications

References 0 publications

Multistage Cretaceous magmatism in the northern coastal region of Ellesmere Island and its relation to the formation of Alpha Ridge – evidence from aeromagnetic, geochemical and geochronological data

Multistage Cretaceous magmatism in the northern coastal region of Ellesmere Island and its relation to the formation of Alpha Ridge – evidence from aeromagnetic, geochemical and geochronological data

A reconstruction of the Eurekan Orogeny incorporating deformation constraints

Imaging the plate boundary between Greenland and North America within the Kane Basin by means of geophysical data

Contact Info

Product

Resources

About