Sedimentological Analysis of an Ancient Sand Sheet of Multiple Origins at Lynch Cove, Puget Sound, Washington

  title={Sedimentological Analysis of an Ancient Sand Sheet of Multiple Origins at Lynch Cove, Puget Sound, Washington},
  author={Tamie Joy Jovanelly and Andrew L. Moore},
Abstract Grain size trends and field observations of an approximately 1100-year-old sand sheet within a salt marsh in Hood Canal at Lynch Cove, Puget Sound, Washington, suggest deposition by multiple mechanisms, including liquefaction and tsunami. Because a tsunami has not occurred within Puget Sound during modern times, it is important to study past sedimentary evidence of tsunamis in the geological record to understand where, when, and how often these events may occur at this location. The… 
Vented sediments and tsunami deposits in the Puget Lowland, Washington – differentiating sedimentary processes
The sandy deposits produced by tsunamis and liquefaction share many sedimentary features, and distinctions between the two are important in seismically active coastal zones. Both types of deposits
Diverse rupture modes for surface-deforming upper plate earthquakes in the southern Puget Lowland of Washington State
Earthquake prehistory of the southern Puget Lowland, in the north-south compressive regime of the migrating Cascadia forearc, reflects diverse earthquake rupture modes with variable recurrence.
Tsunamis générés par des séismes au niveau de la zone de collision entre les plaques africaine et eurasienne : Etudes de cas pour l'évaluation du risque tsunami en Méditerranée occidentale et Atlantique nord
L'objectif principal de cette these est d'approfondir les connaissances en terme d'alea tsunami en Mediterranee occidental et Atlantique nord. Elle se concentre sur des tsunamis d'origine sismique


Erosion and Sedimentation from the 17 July, 1998 Papua New Guinea Tsunami
Abstract— This paper describes erosion and sedimentation associated with the 17 July 1998 Papua New Guinea tsunami. Observed within two months of the tsunami, distinct deposits of a layer averaging
Sea Level, Storm, or Tsunami: Enigmatic Sand Sheet Deposits in a Sheltered Coastal Embayment from Southeastern New South Wales, Australia
Abstract An extended period of marine-dominated back-barrier sedimentation, truncated by the deposition of two large-volume, laterally extensive sand sheets that extend up to 3 km inland from the
Diatoms as an aid in identifying late-Holocene tsunami deposits
Diatoms (Bacillariophyta) help identify the onshore deposits of tsunamis from earthquakes on the Cascadia subduction zone along the Pacific coast of Oregon, Washington, and British Columbia, and on
Sedimentary deposits of the 26 December 2004 tsunami on the northwest coast of Aceh, Indonesia
The 2004 Sumatra-Andaman tsunami flooded coastal northern Sumatra to a depth of over 20 m, deposited a discontinuous sheet of sand up to 80 cm thick, and left mud up to 5 km inland. In most places
Distinguishing Tsunami from Storm Deposits in Eastern North America: The 1929 Grand Banks Tsunami versus the 1991 Halloween Storm
Tsunami deposits related to the 1929 Grand Banks earthquake and washover deposits related to the 1991 Halloween storm differ in their sedimentary characteristics and positions on the landscape.
Abrupt Uplift Within the Past 1700 Years at Southern Puget Sound, Washington
The uplift and probable fault slip show that the crust of the North America plate contains potential sources of damaging earthquakes in the Puget Sound region.
Upper crustal structure in Puget Lowland, Washington: Results from the 1998 Seismic Hazards Investigation in Puget Sound
A new three-dimensional (3-D) model shows seismic velocities beneath the Puget Lowland to a depth of 11 kin. The model is based on a tomographic inversion of nearly one million first-arrival travel
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We use an extensive network of marine high-resolution and conventional industry seismic-reflection data to constrain the location, shallow structure, and displacement rates of the Seattle fault zone