This article is rated Stub-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects:

Canada: British Columbia / Geography Low‑importance This article is within the scope of WikiProject Canada, a collaborative effort to improve the coverage of Canada on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.CanadaWikipedia:WikiProject CanadaTemplate:WikiProject CanadaCanada-related Low This article has been rated as Low-importance on the project's importance scale. This article is supported by WikiProject British Columbia. This article is supported by WikiProject Geography of Canada. Volcanoes: Canada Mid‑importance This article is within the scope of WikiProject Volcanoes, a collaborative effort to improve the coverage of volcanoes, volcanology, igneous petrology, and related subjects on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.VolcanoesWikipedia:WikiProject VolcanoesTemplate:WikiProject VolcanoesWikiProject Volcanoes Mid This article has been rated as Mid-importance on the project's importance scale. This article is supported by the Volcanism of Canada task force (assessed as Mid-importance). Geology Low‑importance This article is within the scope of WikiProject Geology, an attempt at creating a standardized, informative, comprehensive and easy-to-use geology resource. If you would like to participate, you can choose to edit this article, or visit the project page for more information.GeologyWikipedia:WikiProject GeologyTemplate:WikiProject GeologyGeology Low This article has been rated as Low-importance on the project's importance scale.

If the Gulf Islands are in the system, then it follows that the San Juans are too; they only thing distinguishing them is where the int'l boundary was drawn, they're otherwise virtually the same archipelago. And the Olympic Mountains - are they they same system as Vancouver Island?Skookum1 (talk) 03:58, 12 January 2009 (UTC)[reply]

[Better late than never?] In short: no. Both the Olymnpics and the San Juans are geologically distinct, the former being a separate terrane, and the latter a pastiche that includes some severely deformed rock with affinities with the Klamath Mountains of southwestern Oregon. The Darrington—Devils Mountain Fault Zone (see map at Straight Creek Fault, which runs into the Leech River Fault at the southern end of Vancouver Island, and may connect with the West Coast Fault and Queen Charlotte Fault system, is a significant geological separation. I believe the Gulf Islands may be connected with the Insular terrane. A notable contributor in this area is Mark Brandon; see http://www.geology.yale.edu/~markb for his CV. - J. Johnson (JJ) (talk) 21:35, 5 April 2010 (UTC)[reply]

I realize this is a question of the sources used, namely Canadian ones; are the US names for these belts the same - are they defined the same, in fact? As with geography/mountain range articles, there's no reason that the border should be a factor, other than maybe a name change from one side to the next; presumably geologists are coordinated in terms of their hard science, if not their nomenclature....Skookum1 (talk) 04:04, 12 January 2009 (UTC)[reply]

I could not find US portions of thos belts. If there are maps of those portions then someone can remake it. Black Tusk (talk) 04:09, 12 January 2009 (UTC)[reply]

It is a bit of a problem – geologists sometimes joke about the "Border Fault" at the 49th parallel. See John Figge's comments in the introduction to his book. Unfortunately, sometimes the science is trimmed by the nomenclature. - J. Johnson (JJ) (talk) 21:46, 5 April 2010 (UTC)[reply]

This goes to Physical geography and another geology-related term goes to List of physiogeographic regions, but that is a list of topopgraphic regions rather than geologic provinces. Much in the same way that "Insular Mountains" is a distinct concept from Insular Belt, the same is true of Intermontane Belt (geologic) and Interior System (which is geographic, and includes the Omineca Belt geologic province, or most of it). I don't know where to redirect the "physiogeological" link to just now, just wanted to note this for further discussion/elaboration; much in the same way as muddying/confusing topographic regions with ecoregions, muddyin geographic regions with geologic ones is "not on" and care has to be taken to distinguish them, and when necessary separate them....Skookum1 (talk) 18:49, 31 May 2009 (UTC)[reply]