The Yukon–Tanana Terrane ( YTT ) is a tectonic terrane that extends from central Alaska through central Yukon and into northern British Columbia , Canada and Southeast Alaska, USA. Extending over 2000 km, the YTT is the largest tectonostratigraphic terrane in the northern North American Cordillera . The Yukon–Tanana Upland is a physiographic province mostly underlain by rocks of the Yukon–Tanana Terrane.
17-599: Understanding and definition of the YTT is constantly progressing, the term "Yukon Tanana composite terrane," or "YTCT" is used by some workers, reflecting the disparate depositional and tectonic histories being recognized in rock units within the YTT. Since 2010, some work dispenses altogether with the term Yukon–Tanana Terrane, in favor of more detailed subdivisions. The YTT consists of polymetamorphosed and polydeformed metasedimentary, metavolcanic, and metaplutonic rocks of Upper Paleozoic and older ages that were deposited or emplaced near
34-403: A function is defined in lowercase, it can be called in uppercase, but if a variable is defined in lowercase, it cannot be referred to in uppercase. Nim is case-insensitive and ignores underscores, as long as the first characters match. A text search operation could be case-sensitive or case-insensitive, depending on the system, application, or context. The user can in many cases specify whether
51-468: A search is sensitive to case, e.g. in most text editors, word processors, and Web browsers. A case-insensitive search is more comprehensive, finding "Language" (at the beginning of a sentence), "language", and "LANGUAGE" (in a title in capitals); a case-sensitive search will find the computer language "BASIC" but exclude most of the many unwanted instances of the word. For example, the Google Search engine
68-407: A source code tree for software for Unix-like systems might have both a file named Makefile and a file named makefile in the same directory. In addition, some Mac Installers assume case insensitivity and fail on case-sensitive file systems. The older MS-DOS filesystems FAT12 and FAT16 were case-insensitive and not case-preserving, so that a file whose name is entered as readme.txt or ReadMe.txt
85-707: A younger, mid-Cretaceous lower greenschist facies event which resulted from the accretion of the Yukon–Tanana Terrane. A belt of significant Late Triassic to Early Jurassic Cu–Au and Cu–Mo porphyry deposits, such as Highland Valley Copper and Galore, of the Stikine Terrane and Quesnel Terrane extends into the Yukon–Tanana Terrane in Yukon; the Minto mine is an example. Gold mineralization associated with post-amalgamation emplacement of Cretaceous and Tertiary plutonic rocks
102-578: Is basically case-insensitive, with no option for case-sensitive search. In Oracle SQL, most operations and searches are case-sensitive by default, while in most other DBMSes , SQL searches are case-insensitive by default. Case-insensitive operations are sometimes said to fold case , from the idea of folding the character code table so that upper- and lowercase letters coincide. In filesystems in Unix-like systems, filenames are usually case-sensitive (there can be separate readme.txt and Readme.txt files in
119-467: Is recognized as an ocean basin that divided parts of the YTT before amalgamation of the Yukon–Tanana Terrane with the continental margin. The right-lateral strike slip Tintina Fault occurs along the suture zone between the YTT (on the south and west) and ancestral North America to the east; it forms a significant boundary between North America cratonic rocks and rocks of the YTT and associated terranes, although displaced continental rocks are found south of
136-605: Is saved as README.TXT. Later, with VFAT in Windows 95 the FAT file systems became case-preserving as an extension of supporting long filenames . Later Windows file systems such as NTFS are internally case-sensitive, and a readme.txt and a Readme.txt can coexist in the same directory. However, for practical purposes filenames behave as case-insensitive as far as users and most software are concerned. This can cause problems for developers or software coming from Unix-like environments, similar to
153-1140: Is widespread in the YTT. 61°49′16″N 141°12′11″W / 61.821°N 141.203°W / 61.821; -141.203 parautochthonous Look for Parautochthonous on one of Misplaced Pages's sister projects : [REDACTED] Wiktionary (dictionary) [REDACTED] Wikibooks (textbooks) [REDACTED] Wikiquote (quotations) [REDACTED] Wikisource (library) [REDACTED] Wikiversity (learning resources) [REDACTED] Commons (media) [REDACTED] Wikivoyage (travel guide) [REDACTED] Wikinews (news source) [REDACTED] Wikidata (linked database) [REDACTED] Wikispecies (species directory) Misplaced Pages does not have an article with this exact name. Please search for Parautochthonous in Misplaced Pages to check for alternative titles or spellings. You need to log in or create an account and be autoconfirmed to create new articles. Alternatively, you can use
170-471: The article wizard to submit a draft for review, or request a new article . Search for " Parautochthonous " in existing articles. Look for pages within Misplaced Pages that link to this title . Other reasons this message may be displayed: If a page was recently created here, it may not be visible yet because of a delay in updating the database; wait a few minutes or try the purge function . Titles on Misplaced Pages are case sensitive except for
187-690: The Tintina Fault and pieces of the YTT occur north of the Tintina Fault. Parts of the YTT have been offset by at least 400 km (250 mi) along the Tintina Fault. In most of the Alaskan part of the YTT the Denali Fault forms the modern day southern boundary of the terrane. In Yukon the ocean-basin rocks of the Windy–McKinley terrane (in western Yukon), and the Coast Plutonic Complex (CPC) form
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#1732855413605204-716: The edge of the North American continental margin. Rocks in the terrane record a variety of tectonic settings and have experienced varying amounts of tectonic transport, both before and after amalgamation of the YTT with North America. Sequences of mainly parautochthonous quartz-rich sedimentary rocks derived from the North American continent also include meta-igneous rocks with mostly continental geochemical and isotopic signatures. Structurally higher sequences contain meta-igneous rocks with arc and back-arc characteristics. The Slide Mountain/Seventymile Terrane , composed of volcanic rocks typical of seafloor and of typical seafloor sediments,
221-602: The first character; please check alternative capitalizations and consider adding a redirect here to the correct title. If the page has been deleted, check the deletion log , and see Why was the page I created deleted? Retrieved from " https://en.wikipedia.org/wiki/Parautochthonous " Case sensitivity In computers, case sensitivity defines whether uppercase and lowercase letters are treated as distinct ( case-sensitive ) or equivalent ( case-insensitive ). For instance, when users interested in learning about dogs search an e-book , "dog" and "Dog" are of
238-506: The same directory). MacOS is somewhat unusual in that, by default, it uses HFS+ and APFS in a case-insensitive (so that there cannot be a readme.txt and a Readme.txt in the same directory) but case-preserving mode (so that a file created as readme.txt is shown as readme.txt and a file created as Readme.txt is shown as Readme.txt) by default. This causes some issues for developers and power users , because most file systems in other Unix-like environments are case-sensitive, and, for example,
255-763: The same significance to them. Thus, they request a case-insensitive search. But when they search an online encyclopedia for information about the United Nations , for example, or something with no ambiguity regarding capitalization and ambiguity between two or more terms cut down by capitalization, they may prefer a case-sensitive search. Case sensitivity may differ depending on the situation: Some programming languages are case-sensitive for their identifiers ( C , C++ , Java , C# , Verilog , Ruby , Python and Swift ). Others are case-insensitive (i.e., not case-sensitive), such as ABAP , Ada , most BASICs (an exception being BBC BASIC ), Common Lisp , Fortran , SQL (for
272-875: The southern boundary of the YTT. Units assigned to the YTT also occur within the CPC; and the YTT partially encloses and is complexly related to the Intermontane Superterrane (together with the Stikine , Cache Creek , and Quesnel terranes). In Alaska (Delta district) and Yukon (Finlayson Lake belt) the YTT contains a number of Devonian volcanogenic massive sulfide ore deposits with significant copper , zinc , lead , silver and gold mineralization. Sulfide minerals include massive to disseminated pyrite and pyrrhotite with lesser amounts of chalcopyrite , galena , sphalerite and arsenopyrite . The deposits show evidence of an Early Cretaceous , amphibolite facies event and
289-508: The syntax, and for some vendor implementations, e.g. Microsoft SQL Server , the data itself) Pascal , Rexx and ooRexx . There are also languages, such as Haskell , Prolog , and Go , in which the capitalisation of an identifier encodes information about its semantics . Some other programming languages have varying case sensitivity; in PHP , for example, variable names are case-sensitive but function names are not case-sensitive. This means that if
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