Character, paleoenvironment, rate of accumulation, and evidence for seismic triggering of Holocene turbidites, Canada Abyssal Plain, Arctic Ocean

Grantz, Arthur; Phillips, R.L.; Müllen, Michael W.; Starratt, Scott W.; Jones, Glenn; Naidu, A. Sathy; Finney, Bruce P.

doi:10.1016/0025-3227(96)00015-1

Cited by 50 publications

(20 citation statements)

References 23 publications

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“…Piper, 1991; Kastens, 1984;Pareschi et al, 2006;Nelson et al, 1995;Cita and Aloisi, 2000), the Arctic Ocean (Grantz et al, 1996), the Dead Sea (Niemi and Ben-Avraham, 1994;Migowski et al, 2004), Canada (St-Onge et al, 2004), northern California (northern San Andreas Fault; Goldfinger et al, 2003aGoldfinger et al, , b, 2007Goldfinger et al, , 2008; Sumatra , the Hikurangi margin (Pouderoux et al, 2012), and Haiti (McHugh et al, 2011).…”

Section: A E Morey Et Al: Do Small Lakes Record Cascadia Earthquakes?mentioning

confidence: 99%

Are great Cascadia earthquakes recorded in the sedimentary records from small forearc lakes?

Morey

Goldfinger

Briles

et al. 2013

Nat. Hazards Earth Syst. Sci.

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Abstract. Here we investigate sedimentary records from four small inland lakes located in the southern Cascadia forearc region for evidence of earthquakes. Three of these lakes are in the Klamath Mountains near the Oregon-California border, and one is in the central Oregon Coast range. The sedimentary sequences recovered from these lakes are composed of normal lake sediment interbedded with disturbance event layers. The thickest of these layers are graded, and appear to be turbidites or linked debrites (turbidites with a basal debris-flow deposit), suggesting rapid deposition. Variations in particle size and organic content of these layers are reflected in the density and magnetic susceptibility data. The frequency and timing of these events, based on radiocarbon ages from detrital organics, is similar to the offshore seismogenic turbidite record from trench and slope basin cores along the Cascadia margin. Stratigraphic correlation of these anomalous deposits based on radiocarbon ages, down-core density, and magnetic susceptibility data between lake and offshore records suggest synchronous triggering. The areal extent and multiple depositional environments over which these events appear to correlate suggest that these deposits were most likely caused by shaking during great Cascadia earthquakes.

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Section: A E Morey Et Al: Do Small Lakes Record Cascadia Earthquakes?mentioning

confidence: 99%

Are great Cascadia earthquakes recorded in the sedimentary records from small forearc lakes?

Morey

Goldfinger

Briles

et al. 2013

Nat. Hazards Earth Syst. Sci.

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show abstract

“…Sedimentation rates on the shelf, derived from isopach thickness since glacial retreat, generally range from 10 to 300 cm kyr -' (Harper and Penland, 1982;Macdonald et al, 1998) but rapidly decrease farther offshore to values of 1 cm kyr -', and to perhaps as little as 0.1 cm kyr 1 in slope and central basin sediments (Cranston, 1997;Darby et al, 1997;Backman et al, 2004). Although ice scour in shallow regions (< -30m), bioturbation, and for the Beaufort Slope site, turbidites (Phillips et al, 1991;Grantz et al, 1996) have the potential to expose older sediments or recycle them back up to the surface, radiocarbon analysis of marine biomarkers from the shelf stations (discussed below) imply very recent deposition. Aliquots of each sediment sample were measured for total carbon (TC) and total nitrogen (TN) by high temperature combustion on a Carlo Water Depth (m) FIGURE 2.2 -Trends in sedimentary %OC (circles) and TOC/TN (triangles) with water depth from this study (closed symbols) and Gofii et al (2000) (open symbols), along with %OC and TOC/TN for Mackenzie River POC samples from Gofii et al (2000).…”

Section: Lipid Extraction and Isolationmentioning

confidence: 99%

The temporal dynamics of terrestrial organic matter transfer to the oceans : initial assessment and application

Drenzek¹

2007

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“…in Owen et al, 2007;673 Lee, 2009). The Canadian abyssal plain turbidites (Grantz et al, 1996), Afen 674 slide (Wilson et al, 2004), Rockall bank slump (Flood et al, 1979) and north 675 tent 14 C dates. Landslide ages inferred from sediment thickness and nearby 677 sedimentation rates, such as for the Andøya slide (Laberg et al, 2000), Peach 678 2 and 3 debris flows (Holmes et al, 1998), Currituck slide (Prior et al, 1986) 679 and Amazon shallow E debris flow (Maslin et al, 2005), were omitted as well.…”

mentioning

confidence: 99%

Timing and frequency of large submarine landslides: implications for understanding triggers and future geohazard

Urlaub¹,

Talling²,

Masson³

2013

Quaternary Science Reviews

169

164

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Large submarine landslides can have serious socioeconomic consequences as they have the potential to cause tsunamis and damage seabed infrastructure. It is important to understand the frequency of these landslides, and how that frequency is related to climate-driven factors such as sea level or sedimentation rate, in order to assess their occurrence in the future. Recent studies have proposed that more landslides occur during periods of sea level rise and lowstand, or during periods of rapid sedimentation. In this contribution we test these hypotheses by analysing the most comprehensive global data set of ages for large (> 1km 3 ) late Quaternary submarine landslides that has been compiled to date. We include the uncertainties in each landslide age that arise from both the dating technique, and the typically larger uncertainties that result from the position of the samples used for dating. Contrary to the hypothesis that continental slope stability is linked to sea level change, the data set does not show statistically significant patterns, trends or clusters in landslide abundance. If such a link between sea level and landslide frequency exists it is too weak to be detected using the available global data base. It is possible that controlling factors vary between different geographical areas, and their role is therefore hidden * Corresponding author Email address: m.urlaub@noc.soton.ac.uk (Morelia Urlaub)Preprint submitted to Elsevier March 1, 2013in a global data set, or that the uncertainties within the dates is too great to see an underlying correlation. Our analysis also shows that there is no evidence for an immediate influence of rapid sedimentation on slope stability as failures tend to occur several thousand years after periods of increased sedimentation rates. The results imply that there is not a strong global correlation of landslide frequency with sea level changes or increases in local sedimentation rate, based on the currently available ages for large submarine landslides.

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Character, paleoenvironment, rate of accumulation, and evidence for seismic triggering of Holocene turbidites, Canada Abyssal Plain, Arctic Ocean

Cited by 50 publications

References 23 publications

Are great Cascadia earthquakes recorded in the sedimentary records from small forearc lakes?

Are great Cascadia earthquakes recorded in the sedimentary records from small forearc lakes?

The temporal dynamics of terrestrial organic matter transfer to the oceans : initial assessment and application

Timing and frequency of large submarine landslides: implications for understanding triggers and future geohazard

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