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Catherine Chagué

Catherine Chagué
UNSW Sydney | UNSW · School of Biological, Earth and Environmental Sciences (BEES)

PhD

About

152
Publications
42,262
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4,795
Citations
Citations since 2016
47 Research Items
2566 Citations
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20162017201820192020202120220100200300400
20162017201820192020202120220100200300400

Publications

Publications (152)
Article
Full-text available
Informed by Māori oral histories that refer to past catastrophic marine inundations, multi-proxy analysis of stratigraphic records from Swamp Bay, Rangitoto ki te Tonga (D’Urville Island) shows evidence of an anomalous deposit extending some 160 m inland. The deposit includes two distinct lithofacies. The lower sand unit is inferred to have been tr...
Article
We studied onshore sediment cores obtained from a coastal marsh on the south coast of Beppu Bay, northern Kyushu Island, Japan, to ascertain whether prehistoric intraplate earthquakes in the bay had generated tsunamis, and to establish a chronology and recurrence intervals for these earthquakes. The latter had been inferred from investigations on s...
Article
The Lesser Antilles are a densely populated region where local populations and industrial facilities are concentrated at the coastlines, and are therefore exposed to many rapid-onset hazards such as hurricanes and tsunamis. However, the historical catalog of these events is too short to allow risk assessment and return period estimations, and it ne...
Article
Three sedimentary sequences from a coastal wetland behind a sand barrier, on the west coast of d’Urville Island, New Zealand, were examined using a multi-proxy approach, including sedimentological, geochemical and microfossil (diatom) analyses, with the chronology established using radiocarbon and ²¹⁰Pb dating. Data show that a brackish lagoon star...
Article
Full-text available
Following recent tsunamis, most studies have focused on the onshore deposits, while the offshore backwash deposits, crucial for a better understanding of the hydrodynamic processes during such events and offering an opportunity for sedimentary archives of past tsunamis, have mostly been omitted. Here, we present a unique sedimentary record of the b...
Chapter
Geochemical proxies are recognized and valued criteria of the proxy toolkit used to help identify tsunami deposits in the geological record, although they are probably still underutilized. Inorganic geochemistry is most commonly used, while studies based on organic compounds and isotopes are still rare. Recent examples highlighting the use of geoch...
Article
Full-text available
In the original publication of this article [1], there are some errors in Authors’ contributions, the correct ‘Author’s contributions’ should be as below.
Article
Full-text available
Over the past 200 years of written records, the Hawaiian Islands have experienced tens of tsunamis generated by earthquakes in the subduction zones of the Pacific ‘Ring of Fire’ (for example, Alaska–Aleutian, Kuril–Kamchatka, Chile and Japan). Mapping and dating anomalous beds of sand and silt deposited by tsunamis in low‐lying areas along Pacific...
Poster
Full-text available
Following recent tsunamis, most studies have focused on the onshore deposits, while the marine backwash deposits, crucial for a better understanding of the hydrodynamic processes during such events and offering an opportunity for sedimentary archives of past tsunamis, have mostly been omitted (Costa et al., 2014). Moreover, we lack of distinguishin...
Article
Full-text available
Abstract Stratigraphic and paleontological investigations in Mugi Town, on the Pacific coast of Shikoku Island, revealed evidence of as many as five tsunami inundations from events along the Nankai Trough between 5581 and 3640 cal yr BP. Nine event deposits (E1–E9) were identified in cores ranging in length from 2 to 6 m, consisting of sandy and gr...
Article
Late Holocene environmental changes were examined in Dee Why Lagoon, New South Wales, based on the sedimentological, geochemical and geochronological analysis of six cores collected from the fluvial delta and lagoon basin. The lagoon formed about 7300–7200 cal yr BP, following the post-glacial marine transgression and establishment of a sand barrie...
Article
The Waikari River tsunami was caused by a landslide triggered by the 1931 Hawke's Bay earthquake, New Zealand's deadliest natural disaster to date. Although it was reported in newspapers and personal diaries at the time, this is the first study to examine the tsunami using a multi-proxy approach aimed at investigating the physical evidence of this...
Article
Full-text available
X‐ray tomography is used to analyse the grain size and sedimentary fabric of two tsunami deposits in the Marquesas Islands (French Polynesia, Pacific Ocean) which are particularly exposed to trans‐Pacific tsunamis. One site is located on the southern coast of Nuku Hiva Island (Hooumi) and the other one is on the southern coast of Hiva Oa Island (Ta...
Article
Tsunami deposits present an important archive for understanding tsunami histories and dynamics. Most research in this field has focused on onshore preserved remains, while the offshore deposits have received less attention. In 2009, during a coring campaign with the Italian Navy Magnaghi, four 1 m long gravity cores (MG cores) were sampled from the...
Article
Full-text available
Extensive bathymetric and two‐dimensional seismic surveys have been carried out and cores collected in Pago Pago Bay (Tutuila, American Samoa) in order to describe and gain a better understanding of the sediment fill of the bay, which was affected by the 2009 South Pacific Tsunami. Eight sedimentary units were identified over the volcanic bedrock....
Presentation
Full-text available
The South Pacific Tsunami (SPT, 29th Sept. 2009) struck Tutuila (American Samoa) with waves up to 7 m inundating Pago Pago Bay up to 500 m inland. Unlike inland deposits, shallow marine deposits are not impacted by subaerial erosion and human activities, but mainly by bioturbation and wave reworking. They are more likely to be preserved in deep and...
Article
Sedimentary, geochemical, geomorphological, radiocarbon and numerical modelling data were used to examine the nature, extent and age of a boulder scatter at Okawa Point, Chatham Island, New Zealand. Boulders up to 98 t were traced around 800m inland and comprised both a landward and seaward grouping on either side of a mid-Holocene high-stand storm...
Chapter
Following the 2011 Tohoku-oki tsunami, many studies were carried out to provide insights into processes involved with this event, as well as to assess its impact on the landscape and the environment, evaluate the evidence that was left behind and how it changed with time. Much can be learned from analogues of events that have occurred in the past,...
Article
Recurrent storms, floods, landslides, earthquakes and tsunamis challenge the development of resilient infrastructure and communities in coastal northwestern British Columbia. Vulnerability assessment first requires extended and improved understanding of geohazards in the Pacific Basin to constrain modelling of future events. An investigation of soi...
Article
The 14 November 2016 Kaikōura Tsunami inundated Little Pigeon Bay in Banks Peninsula, New Zealand, and left a distinct sedimentary deposit, on the ground and within the cottage near the shore. Sedimentary (grain size) and geochemical (electrical conductivity and X-Ray Fluorescence) analyses on samples collected over successive field campaigns are u...
Article
The Japanese community of Shinmachi, established on low-lying land between downtown Hilo and Waiakea, Hawaii, was obliterated by the 1946 Aleutian tsunami but was rebuilt, only to be destroyed again by the 1960 Chilean tsunami. The aim of this study was to find out if any geological evidence of these well documented events had been preserved in the...
Presentation
Full-text available
The South Pacific Tsunami (29th Sept. 2009) severely hit the Tutuila volcanic island (American Samoa) and caused significant damage along the shoreline and more than 30 deaths. A tsunami wave is composed of two main successive stages: the uprush and the backwash resulting in the deposition of subaerial and marine sediments on the coastal plain and...
Article
Full-text available
The 2016 Mw 7.8 Kaikōura earthquake was one of the largest earthquakes in New Zealand’s historical record, and it generated the most significant local source tsunami to affect New Zealand since 1947. There are many unusual features of this earthquake from a tsunami perspective: the epicentre was well inland of the coast, multiple faults were involv...
Article
Full-text available
At 12:02:56 a.m. Monday, November 14 2016 NZDT (11:02:56 a.m., November 13 2016 UTC) a magnitude 7.8 earthquake struck near Kaikōura on the north-eastern coast of the South Island of New Zealand. This earthquake caused a tsunami along New Zealand’s east coast that was recorded on a number of sea level gauges. Outside of the Kaikōura region, north f...
Article
Sedimentary, geochemical, microfossil and geochronological analyses were carried out on 10 sediment cores across the south-eastern corner of Mataora-Wairau Lagoon (M-WL), South Island, Aotearoa-New Zealand. This multi-proxy approach provides strong evidence for three late Holocene palaeotsunamis (two previously unreported) and a historical tsunami...
Article
Much progress has been made since the first published studies of tsunami deposits nearly 30 years ago. Geochemistry is now a much more widely used proxy in tsunami research, mainly due to its increasingly recognised value in the identification of historical and/or prehistorical deposits, at times even providing the conclusive proof when other proxi...
Article
There has been considerable progress in tsunami research in recent years, yet most work has been focussed on identifying and understanding the evidence of large events. This study aimed to identify the evidence of small historical tsunamis in Lyttelton Harbour, New Zealand. The study area has been inundated by multiple relatively small historical t...
Poster
Full-text available
Samoa Islands are recurrently affected by tsunamis gener- ated from regional (Tonga-Kermadec subduction zone) or remote sources (teletsunamis). Recently, they have been affected by the 29 September 2009 South Pacific Tsunami that led to numerous destructions and casualties. Tsunami deposits develop mainly on- shore on coastal plains and are charact...
Article
This paper reports on the erosion, transport, and deposition processes associated with an overbank deposit formed by the flooding of the Abu River on July 28, 2013, in Yamaguchi City, Japan. At the study site, river flows overtopped the levee revetment upstream of a meander bend cutting it off and flowing back into the main channel downstream. In t...
Article
This study of five sand units at Lavericks Bay, New Zealand, reports on the sedimentary evidence for three trans-Pacific tsunamis and two local storms. The 1868 Arica, 1877 Iquique and 1960 Valdivia tsunamis from Chile were the largest distantly generated events in New Zealand’s history but have never before been identified at the same location. It...
Article
A 4.3m-long peat sequence from the shore of Lake Tiriara, Mangaia, Cook Islands, was analyzed using an ITRAX core scanner equipped with a magnetic susceptibility meter. Variations in the elemental profiles, providing insights into long- and short-term environmental changes over the last 3500years, are supported by grain size data and diatom assembl...
Article
Full-text available
In the absence of eyewitness reports or clear sedimentary structures, it can be difficult to interpret tsunami deposits or reconstruct tsunami inundation patterns. The emplacement dynamics of two historical tsunami deposits were investigated at seven transects in Okains Bay, New Zealand, using a combined geospatial, geomagnetic and sedimentological...
Article
Full-text available
Mineralogy and elemental concentration of two coal seams in Alberta, Canada, were determined using X-ray diffractometry and X-ray fluorescence (XRF). Minerals consist mainly of quartz and calcium minerals, the latter as calcite and vaterite, and oxalate (whewellite). Clay minerals are present as kaolinite, reflecting peat deposition in an acidic en...
Article
Full-text available
The petrography of two coal seams in Alberta was determined using reflected light microscopy. Random reflectance is 0.36%, indicating a lignite rank. Huminite is dominant over liptinite and inertinite. Maceral assemblage suggests a wet forest moor depositional paleoenvironment. The predominance of telohuminite and gelohuminite over detrohuminite an...
Article
Palaeotsunami research is a relatively young discipline and while considerable progress has been made in identifying the evidence of past events there are still difficulties on occasion in differentiating between palaeotsunami and palaeostorm deposits. This has tended to focus debate on the similarities and differences between deposits laid down by...
Conference Paper
The term “mega-tsunami” has crept into the scientific literature over recent years following the devastation wrought by the 2004 Indian Ocean and 2011 Tohoku-oki tsunamis. However, it is interesting to note that until recently, no one took the time to consider the definition of this term. While there have been several previous attempts at a definit...
Article
In this study, geochemical and radioanalytical techniques are used together with the ITRAX core scanner to reconstruct the environmental history of Mill Creek catchment, located on the southwestern fringes of Sydney. This ITRAX capability study was undertaken to investigate environmental changes in a local catchment which incorporates a nuclear res...
Article
Tsunamis transport large amounts of sediment and can leave recognisable signatures in the landscape. The form and composition of onshore tsunami deposits are a function of wave dynamics, sediment availability and characteristics of the local environment, the latter of which also partially controls preservation of the deposit. This research reviews...
Chapter
In this study, geochemical and radioanalytical techniques are used together with the ITRAX core scanner to reconstruct the environmental history of Mill Creek catchment, located on the southwestern fringes of Sydney. This ITRAX capability study was undertaken to investigate environmental changes in a local catchment which incorporates a nuclear res...
Article
The Tasman Sea between Australia and New Zealand is rarely considered as an important source for tsunamis. We review the past 1000 years of unusual events and find evidence for three (possibly four) large tsunamis, one historical and two during the period of Māori occupation prior to European arrival. Event 1 appears to have affected the town of We...
Conference Paper
Full-text available
The recent results obtained from a 6.7 m-long piston-core (MS06), collected 2.3 km offshore Augusta at a water depth of 72 m and made of an almost homogeneous dark gray mud dated back to the last 4500 yrs, stimulated our curiosity in searching for other similar signatures. In fact, quantitative micropaleontological analysis of benthic foraminifera...
Conference Paper
High energy coastal events, such as tsunamis, commonly leave sediment deposits in the landscape that may be preserved in the geological record. A set of anomalous sand and silt layers intercalated between soil units was identified alongside an estuary in Okains Bay, Banks Peninsula, New Zealand. Okains Bay, comprised of a coastal plain of Holocene...
Article
Full-text available
Tsunami deposits have been widely studied in temperate latitudes, but the intrinsic difficulties associated with tropical coastal environments, and the intensity of bioturbation in these habitats, limit the possibilities of analysing these formations. Here, we investigate the deposits on the Colima coast of Mexico, which overlies the subducting Riv...
Chapter
The long-term effect of tsunami inundation on soil salinisation was assessed following the 2011 Tohoku-oki tsunami in two areas on the Sendai Plain, near Sendai airport in the Miyagi Prefecture and Matsukawa-ura near Soma in the Fukushima Prefecture. Data gathered over four sampling seasons 2, 5, 9 and 11 months after the tsunami near Sendai airpor...
Article
The 2011 Tohoku-oki tsunami that devastated the Pacific coast of Tohoku, Japan was a turning point for modern research. As a result of this event it was recognized that paleotsunami research is vital to help understand the size and recurrence interval of low-frequency large tsunamis. This paper reviews the progress of geological research on the 201...
Article
The magnetic fabric and grain size of sand deposits emplaced during the 2011 Tohoku-oki tsunami were studied in five trenches along a 1800 m long shore-normal transect on the Sendai plain as well as in a near shore sedimentary infill of a scour depression. The magnetic susceptibility in all deposits is due to ferromagnetic minerals (mainly magnetit...
Chapter
Full-text available
http://pubs.usgs.gov/of/2013/1170/c/ A statewide assessment for geological evidence of tsunamis, primarily from distant-source events, found tsunami deposits at several locations, though evidence was absent at most locations evaluated. Several historical distant-source tsunamis, including the 1946 Aleutian, 1960 Chile, and 1964 Alaska events, cause...
Article
There has been a significant increase in the number of peer-reviewed publications, critical reviews and searchable web-based databases, since the first substantial tsunami database for Australia was published in 2007. This review represents a complete re-organisation and restructuring of previous work coupled with the addition of new data that take...
Article
[1] Four well-identified tropical cyclones over the past century have been responsible for depositing distinct units of predominantly quartzose sand and gravel to form the most seaward beach ridge at several locations along the wet tropical coast of northeast Queensland, Australia. These units deposited by tropical cyclones display a key sedimentar...
Conference Paper
Rikuzentakata City, NE Japan, has been repeatedly suffered by tsunami inundations including 1896 Meiji-Sanriku, 1933 Showa-Sanriku, 1960 Chilean Tsunami, and 2011 Tohoku-Oki Tsunami. Up to 30 cm thick sand layer was deposited by the 2011 tsunami in this city (Naruse et al., 2012). Our study indicates that historical and prehistoric tsunamis also le...
Article
Full-text available
A study (2004-11) of a dairy catchment stream entering an oligotrophic lake in an area of very high rainfall (similar to 5m year(-1)) yielded median concentrations of total nitrogen (TN), total phosphorus (TP), suspended sediment (SS) and Escherichia coli (E. coli) of 0.584, 0.074 and 3.7 gm(-3), and 405/100mL (most probable number method), respect...