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Full-Text Articles in Social and Behavioral Sciences
Reconnaissance Of Historic (Post-Ad 1000) High-Energy Deposits Along The Atlantic Coasts Of Southwest Britain, Ireland And Brittany, France, S. K. Haslett, Edward A. Bryant
Reconnaissance Of Historic (Post-Ad 1000) High-Energy Deposits Along The Atlantic Coasts Of Southwest Britain, Ireland And Brittany, France, S. K. Haslett, Edward A. Bryant
Faculty of Science - Papers (Archive)
Sand and gravel deposits from the Atlantic coasts of southwest Britain, Brittany and western Ireland are identified as potential indicators of historic (post-AD 1000) ocean-sourced high-energy events, such as storm surges and tsunami. This is an important historic period as it includes the climatic perturbations of the Medieval Warm Period and the Little Ice Age, and also seismogenic events, such as the Lisbon tsunami of 1755. Ten new sites are identified from various coastal settings and dated using eight new radiocarbon dates alongside previously published data. Generally, sites do not appear to record multiple high-energy events, suggesting that either only …
Catastrophic Wave Erosion, Bristol Channel, United Kingdom: Impact Of Tsunami?, E. A. Bryant, S. Haslett
Catastrophic Wave Erosion, Bristol Channel, United Kingdom: Impact Of Tsunami?, E. A. Bryant, S. Haslett
Faculty of Science - Papers (Archive)
On January 30, 1607, a massive wave from the ocean surged up Bristol Channel in the United Kingdom, flooding more than 500 km2 of lowland along 570 km of coast. It killed 2000 people and is considered Britain’s worst natural disaster on land. The wave occurred on a fine day and surprised inhabitants. Contemporary descriptions of the event have many of the characteristics of accounts of recent catastrophic tsunamis. Geomorphic evidence for tsunamis in the channel can be found in the form of transported and imbricated boulders, bedrock sculpturing on coastal platforms and ramps, and, at isolated locations, wholesale erosion …
Cosmogenic Mega-Tsunami In The Australia Region: Are They Supported By Aboriginal And Maori Legends?, Edward A. Bryant, G. Walsh, D. Abbott
Cosmogenic Mega-Tsunami In The Australia Region: Are They Supported By Aboriginal And Maori Legends?, Edward A. Bryant, G. Walsh, D. Abbott
Faculty of Science - Papers (Archive)
Mega-tsunami have affected much of the coastline of Australia over the past millennium. Such catastrophic waves have left an imprint consisting predominently of bedrock sculpturing of the rocky coastline and deposition of marine sediments to elevations reaching 130 mabove sea level. One of the largest of these events occurred in eastern Australia in the fifteenth century. This event may be related to the Mahuika impact crater found at 48.38 S, 166.48 E on the continental shelf 250 km south of New Zealand. A comet at least 500 m in diameter formed the crater. Maori and Aboriginal legends allude to significant …
Evidence For Historic Coastal High-Energy Wave Impact (Tsunami?) In North Wales, United Kingdom, S. Haslett, Edward A. Bryant
Evidence For Historic Coastal High-Energy Wave Impact (Tsunami?) In North Wales, United Kingdom, S. Haslett, Edward A. Bryant
Faculty of Science - Papers (Archive)
Understanding the contribution of high-energy events (e.g. storms, tsunami) to coastal evolution is currently much debated. Field investigations in North Wales on Anglesey and the Lleyn Peninsula have identified four sites where imbricated boulder trains occur that are discriminators of wave characteristics. Clast analysis indicates that storm wave heights (ca. 20 m), in excess of known extremes (5 to < 9 m), are required to transport them. A plausible explanation is the historic impact of tsunami (≥ 5 m high) that may have been caused either by a) a submarine slide situated offshore on the edge of the continental shelf or Rockall Trough, b) through seismic activity, as the region is one of the most seismically active regions of the British Isles, or c) impact of comet debris in the North Atlantic, with a candidate event around AD 1014. Field evidence suggests that such a high wave-energy event has not recurred along this coast within the last 400 years.