MARINE AND TERRESTRIAL SIGNALS IN TSUNAMI DEPOSITS

2017 ◽  
Author(s):  
Hui Tang ◽  
◽  
Robert Weiss
Keyword(s):  
Geosciences ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 46
Author(s):  
Bachtiar W. Mutaqin ◽  
Franck Lavigne ◽  
Patrick Wassmer ◽  
Martine Trautmann ◽  
Puncak Joyontono ◽  
...  

Indonesia is exposed to earthquakes, volcanic activities, and associated tsunamis. This is particularly the case for Lombok and Sumbawa Islands in West Nusa Tenggara, where evidence of tsunamis is frequently observed in its coastal sedimentary record. If the 1815 CE Tambora eruption on Sumbawa Island generated a tsunami with well-identified traces on the surrounding islands, little is known about the consequences of the 1257 CE tremendous eruption of Samalas on the neighboring islands, and especially about the possible tsunamis generated in reason of a paucity of research on coastal sedimentary records in this area. However, on Lombok Island, the eruption of the Samalas volcano produced significant volumes of pyroclastic flows that entered the sea in the North and East of the island. These phenomena must have produced a tsunami that left their traces, especially on Sumbawa Island, whose western coastline is only 14 km away from Lombok’s eastern shore. Therefore, the main goal of this study is to investigate, find evidence, and determine the age of marine-origin sediments along the shore of the Alas Strait, Indonesia. We collected and analyzed samples of coral and seashells from marine deposits identified along the west coast of Sumbawa, i.e., in Belang Island and abandoned fishponds in Kiantar Village, in order to identify the sources and the occurrence period of these deposits events. Based on the radiocarbon dating of coral and seashell samples, we concluded that none of the identified marine deposits along the western coast of Sumbawa could be related chronologically to the 1257 CE eruption of Samalas. However, possible tsunami deposits located in Belang Island and abandoned fishponds in Kiantar Village yielded 4th century CE, 9th century CE, and 17th century CE. We also conclude that past large earthquakes triggered these tsunamis since no known volcanic eruption occurred near the Alas Strait at that time that may have triggered a tsunami.


Sedimentology ◽  
2020 ◽  
Vol 67 (3) ◽  
pp. 1553-1576 ◽  
Author(s):  
Alessandra Smedile ◽  
Flavia Molisso ◽  
Catherine Chagué ◽  
Marina Iorio ◽  
Paolo Marco De Martini ◽  
...  

2014 ◽  
Vol 123 (6) ◽  
pp. 835-853 ◽  
Author(s):  
Takahiro WATANABE ◽  
Noriyoshi TSUCHIYA ◽  
Shin-ichi YAMASAKI ◽  
Ryoichi YAMADA ◽  
Nobuo HIRANO ◽  
...  

2007 ◽  
Vol 200 (3-4) ◽  
pp. 275-294 ◽  
Author(s):  
Futoshi Nanayama ◽  
Ryuta Furukawa ◽  
Kiyoyuki Shigeno ◽  
Akito Makino ◽  
Yuji Soeda ◽  
...  

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Tatsu Kuwatani ◽  
Kenji Nagata ◽  
Masato Okada ◽  
Takahiro Watanabe ◽  
Yasumasa Ogawa ◽  
...  

2016 ◽  
Vol 377 ◽  
pp. 95-109 ◽  
Author(s):  
Y. Takashimizu ◽  
R. Kawamura ◽  
F.J. Rodríguez-Tovar ◽  
J. Dorador ◽  
E. Ducassou ◽  
...  

2010 ◽  
Vol 73 (1) ◽  
pp. 130-135 ◽  
Author(s):  
Francisco Ruiz ◽  
Manuel Abad ◽  
Luís Miguel Cáceres ◽  
Joaquín Rodríguez Vidal ◽  
María Isabel Carretero ◽  
...  

This review analyses the ostracod record in Holocene tsunami deposits, using an overview of the 2004 Indian Ocean tsunami impact on its recent populations and the associated tsunamigenic deposits, together with results from numerous investigations of other Holocene sequences. Different features such as the variability of the local assemblages, population density, species diversity, age population structure (e.g., percentages of adults and juvenile stages) or taphonomical signatures suggest that these microorganisms may be included amongst the most promising tracers of these high-energy events in marshes, lakes, lagoons or shallow marine areas.


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