Transverse tectonic boundaries near Kodiak Island, Alaska
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
Abstract
Transverse tectonic boundaries exist at the northeast and southwest ends of the Kodiak islands, so that the Aleutian arc-trench system is longitudinally segmented in this area. Evidence for the transverse boundaries includes alignments of such geologic features as offset volcanic lineations, terminations of structural trends, and boundaries of discrete zones of earthquake aftershock sequences. The boundaries appear to be broad zones of disruption that began to form during the late Miocene or Pliocene. Although oceanic fracture zones and seamount chains intersect the continental margin near the boundaries, subduction of these features probably did not cause the tectonic boundaries. The fracture zones and seamount chains have swept northeastward along the margin, at least since the late Pliocene, because of the direction of convergence of the Pacific and North American plates.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Transverse tectonic boundaries near Kodiak Island, Alaska |
| Series title | Geological Society of America Bulletin |
| DOI | 10.1130/0016-7606(1981)92<10:TTBNKI>2.0.CO;2 |
| Volume | 92 |
| Issue | 1 |
| Year Published | 1981 |
| Language | English |
| Publisher | Geological Society of America |
| Description | 9 p. |
| First page | 10 |
| Last page | 18 |
| Google Analytic Metrics | Metrics page |