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The Cascadia Tsunami Deposit Database contains data on thelocation and sedimentological properties of tsunami depositsfound along the Cascadia margin. Data have been compiled from52 studies, documenting 59 sites from northern California toVancouver Island, British Columbia that contain known orpotential tsunami deposits. Bibliographical references areprovided for all sites included in the database. Cascadiatsunami deposits are usually seen as anomalous sand layers incoastal marsh or lake sediments. The studies cited in thedatabase use numerous criteria based on sedimentarycharacteristics to distinguish tsunami deposits from sandlayers deposited by other processes, such as river floodingand storm surges. Several...
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This map of selected post-Nevadan features is in a sensesupplementary to Map I-2148 (Geologic map of the Klamath Mountains,compiled by W.P. Irwin, 1994). The map of selected post-Nevadangeologic features is in large part a compilation of the publishedwork of many geologists (see Fig. 1--Index map showing sources ofdata). The principal focus of Map I-2148 concerned the assemblageof terranes that constitute the principal bedrock of the KlamathMountains. The terranes of the Klamath Mountains variously consistof rocks that range from Cambrian to Late Jurassic and perhaps evenearliest Cretaceous age. All of these terranes have been subjectedto episodes of metamorphism, plutonism, and tectonism, including amajor widespread...
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The Cascadia Tsunami Deposit Database contains data on the location and sedimentological properties of tsunami deposits found along the Cascadia margin. Data have been compiled from 52 studies, documenting 59 sites from northern California to Vancouver Island, British Columbia that contain known or potential tsunami deposits. Bibliographical references are provided for all sites included in the database. Cascadia tsunami deposits are usually seen as anomalous sand layers in coastal marsh or lake sediments. The studies cited in the database use numerous criteria based on sedimentary characteristics to distinguish tsunami deposits from sand layers deposited by other processes, such as river flooding and storm surges....


    map background search result map search result map Cascadia tsunami deposit database Cascadia tsunami deposit database Preliminary map of selected post-Nevadan geologic features of the Klamath Mountains and adjacent areas, California and Oregon: A digital database Preliminary map of selected post-Nevadan geologic features of the Klamath Mountains and adjacent areas, California and Oregon: A digital database Cascadia tsunami deposit database Cascadia tsunami deposit database