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Manifestations of the Cretaceous High Arctic Large Igneous Province in Svalbard
| Content Provider | Semantic Scholar |
|---|---|
| Author | Maher, Harmon D. |
| Copyright Year | 2001 |
| Abstract | Abstract Major Cretaceous Large Igneous Provinces (LIPs, e.g., Kerguelen and Ontong Java) show Aptian magmatic peaks and are linked to global mantle overturning and anomalous surface conditions. Widespread Cretaceous igneous activity in the High Arctic has recently been identified as a LIP. Exposed components on Svalbard, Franz Josef Island, adjacent shelf areas, Axel Heiberg and Ellesmere Islands, and perhaps North Greenland, cover several hundred thousand square kilometers and were peripheral to a LIP center at the Alpha Ridge. Manifestations of LIP development on Svalbard include (1) extensive sills, rare dikes, and extrusives in the east, (2) slow regression within the upper part of thick, black shales punctuated by locally abrupt uplift, with overlying coastal plain sandstones, (3) development of a regional, Late Cretaceous, low‐angle unconformity associated with a second regression, and (4) a widespread Early Aptian transition from quartz arenites to lithic arenites and feldspathic sandstones reflec... |
| Starting Page | 91 |
| Ending Page | 104 |
| Page Count | 14 |
| File Format | PDF HTM / HTML |
| DOI | 10.1086/317960 |
| Volume Number | 109 |
| Alternate Webpage(s) | https://people.ucsc.edu/~acr/migrated/BeringResources/Articles%20of%20interest/Central%20Artic/Maher%202001.pdf |
| Alternate Webpage(s) | https://doi.org/10.1086/317960 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
