A5071557990- earthquake and tectonic studies
- Geology and Paleoclimatology Research
- Geological formations and processes
- Coastal and Marine Dynamics
- Geological and Tectonic Studies in Latin America
- Tropical and Extratropical Cyclones Research
- Methane Hydrates and Related Phenomena
- Coral and Marine Ecosystems Studies
- Paleontology and Stratigraphy of Fossils
- Landslides and related hazards
- Seismology and Earthquake Studies
- Geological and Geophysical Studies Worldwide
- Geological Studies and Exploration
- Geological and Geophysical Studies
- Marine and coastal plant biology
- Geochemistry and Elemental Analysis
- Evolution and Paleontology Studies
- Pacific and Southeast Asian Studies
- Coastal wetland ecosystem dynamics
- Geological and Geochemical Analysis
University of Basel
2018-2021
State Museum of Natural History Karlsruhe
2021
Universität Trier
2015-2017
University of Münster
2008-2017
Abstract Onshore tsunami deposits may consist of inflow and backflow deposits. Grain sizes can range from clay to boulders several metres in diameter. Grain‐size distributions reflect the mode deposition be used explore hydrodynamic conditions transport. The absence unique sedimentary features identifying makes it difficult some cases distinguish On Isla Mocha off central Chile, 27 February 2010 left behind highly variable character. Tsunami entrained sands, gravels upper shoreface, beach,...
Extraordinary marine inundation scattered clasts southward on the island of Anegada, 120 km south Puerto Rico Trench, sometime between 1200 and 1480 calibrated years (cal yr) CE. Many these were likely derived from a fringing reef sandy flat that separates island's north shore. The include no fewer than 200 coral boulders, mapped herein for first time mainly found hundreds meters inland. are complete colonies brain Diploria strigosa. Other species represented Orbicella (formerly Montastraea)...
Research Article| September 01, 2009 Sedimentology and hydrodynamic implications of a coarse-grained hurricane sequence in carbonate reef setting Michaela Spiske; Spiske * 1Westfälische Wilhelms-Universität, Geologisch-Paläontologisches Institut, Corrensstrasse 24, 48149 Münster, Germany *E-mail: spiske@uni-muenster.de. Search for other works by this author on: GSW Google Scholar Bruce E. Jaffe 2U.S. Geological Survey, 400 Natural Bridges Drive, Santa Cruz, California 95060, USA Author...
Abstract Hurricane Irma (September 2017) was one of the most devastating hurricanes in recent times. In January 2018, a post‐hurricane field survey conducted on Anegada (British Virgin Islands) to report erosional and depositional evidence caused by Irma's storm surge waves. We document type extent hurricane‐induced geomorphological changes, allowing for an improved risk assessment hurricane‐related inundation low‐lying islands carbonate platforms. Anegada's north shore impacted Irma. The...
Abstract. A coral-rubble ridge fringes part of the north shore Anegada, a low-lying island in northern Caribbean. Both historical reports and geological record underline its vulnerability to tsunami hurricanes. In this study we document sedimentary characteristics ridge, which extends discontinuously along 1.5–1.8 km chiefly north-facing shores at Soldier Wash. The is less distinctive appears only patches west-facing shoreline Windless Bight, where wave regime calmer. It located ca. 8 m from...
Abstract Ordovician graptolite faunas of Peru are restricted to a short interval in the Middle basal Upper Ordovician, found three regions country. All Peruvian strongly dominated by shallow water elements Atlantic Faunal Realm, represented largely Didymograptus s. str. and Aulograptus , but number faunal pandemic isograptid biofacies have recently been discovered Sandia Region SE Peru. reviewed new records from discussed detail. The Purumpata Iparo members San José Formation range age...
Abstract Coastal boulder deposits and chevrons are two features whose origin have triggered controversial discussions. Boulders often used as indicators of past tsunamis storms, with the former interpretation in many cases preferred due to clast size. Chevrons, defined large parabolic sand bodies, were previously attributed (mega‐)tsunami, potentially caused by oceanic impacts, because their dimensions, height above sea level alignment central axis. This study documents that along Quobba...
Abstract. A coral-rubble ridge built by storm waves at Anegada (British Virgin Islands) underwent remarkable changes in shape and weathering a 23-month period. The is located along the island's north shore, lee of fringing reef flat. This coarse-clast showed two major between March 2013, when first examined, February 2015, revisited. First, trench dug intentionally left open for further examination, was found almost completely infilled morphology modified slumping clasts down slope reworking...
Abstract Modern microfossil distributions reflect site‐specific habitats and provide an opportunity to assess sediment transport pathways in the nearshore environment. When applied overwash deposits geological record, they insight into provenance transport, factors important for understanding patterns of frequency intensity past storms tsunamis. distribution studies are rare often first established ones occur immediately after event as part a post‐event field survey. This is problematic...