A chronology of landslide activity in the valley of Rivière du Gouffre, Charlevoix, Quebec

1991 ◽  
Vol 28 (2) ◽  
pp. 250-256 ◽  
Author(s):  
Louise Filion ◽  
François Quinty ◽  
Christian Bégin
Keyword(s):  
Tree Ring ◽  
Large Earthquake ◽  
Radiocarbon Dates ◽  
Tree Ring Analysis ◽  
Small Lake ◽  
Landslide Activity ◽  
Ring Analysis

Data on earthquake-induced landslides in the valley of Rivière du Gouffre in the Charlevoix region of Quebec are presented. A set of 37 radiocarbon dates obtained from tree trunks buried in flow material and found at the bottom of a small lake was used to reconstruct landslide activity. In addition, large subfossil tree trunks were sampled for tree-ring analysis. The radiocarbon dates indicate that most landslide activity in the area is recent (<600 BP). Two tree-ring-dated landslides were triggered by a large earthquake in AD 1663.

scholarly journals Recurrence interval of strong earthquakes in the se Altai, Russia revealed by tree-ring analysis and radiocarbon dating

2018 ◽  
Vol 45 (1) ◽  
pp. 20-33 ◽  
Author(s):  
Roman K. Nepop ◽  
Anna R. Agatova
Keyword(s):  
Tree Ring ◽  
Radiocarbon Dating ◽  
Recurrence Interval ◽  
Rock Falls ◽  
Southeastern Part ◽  
Individual Tree ◽  
Radiocarbon Dates ◽  
Strong Earthquakes ◽  
Tree Ring Analysis ◽  
Ring Analysis

Abstract This paper presents the results of paleoseismogeological investigations including tree-ring analysis and radiocarbon dating in pleistoseist zone of the 2003 Chuya earthquake, SE Altai, Russia. Twenty-five radiocarbon dates of previously unknown evidences of prehistoric earthquakes along the fault bounders of the Chagan-Uzun massif, North Chuya and South Chuya ranges are reported. Perspectives of applying dendroseismological approach within the high mountainous seismically active southeastern part of Russian Altai are demonstrated. In addition to estimating the germination ages of trees growing on the bare surfaces of seismically triggered landslides, analysis of wood penetrating injuries in the individual tree ring series was applied for dating paleorock-falls. Analysis of distribution patterns of tree-ring anomalies and injured trees suggests a criterion of recognizing seismic origin of past rock-falls. Dendrochronologically obtained dates of abrupt intensifications of rock-falls can be considered as supposed dates of past earthquakes, which should be verified by alternative proxy data. Obtained results argue for the high regional seismicity in the second half of the Holocene. Strong earthquakes occurred here AD 1532, and 600–700, 1300–1500, 2400–2700, 3400–3700, 3800–4200 cal BP. This data clarifies the chronology of seismic events within the SE Altai. The specified recurrence interval of strong earthquakes is about 400 years during the last 4000 years.

scholarly journals A novel computer-aided tree-ring analysis software (CATS): oak earlywood vessel size reveals a clear spring heat sum response

Trees ◽  
2017 ◽  
Vol 31 (5) ◽  
pp. 1683-1695 ◽  
Author(s):  
Alexander Land ◽  
Matthias Wehr ◽  
Kai-Uwe Roelfs ◽  
Simon Epkes ◽  
Daniel Reichle ◽  
...  
Keyword(s):  
Tree Ring ◽  
Analysis Software ◽  
Tree Ring Analysis ◽  
Vessel Size ◽  
Computer Aided ◽  
Earlywood Vessel ◽  
Ring Analysis

scholarly journals Radiation densitometry in tree-ring analysis: a review and procedure manual

1985 ◽  
Author(s):  
M.L. Parker ◽  
F.G. Taylor ◽  
T.W. Doyle ◽  
B.E. Foster ◽  
C. Cooper ◽  
...  
Keyword(s):  
Tree Ring ◽  
Tree Ring Analysis ◽  
Ring Analysis

scholarly journals Growth and yield estimation of Chamaecyparis spp. through tree ring analysis

2013 ◽  
Vol 22 (2) ◽  
pp. 36-42 ◽  
Author(s):  
D. K. Kharal ◽  
T. Fujiwara
Keyword(s):  
Tree Ring ◽  
Radial Growth ◽  
Ring Width ◽  
Forest Products ◽  
Growth And Yield ◽  
Tree Age ◽  
Biomass Estimation ◽  
Tree Ring Analysis ◽  
Ring Density ◽  
Ring Analysis

Tree ring analysis is one of the most useful methods in volume and biomass estimation especially of the conifer trees. Ring width and ring density are important parameters in dendrochronological research. The present research was carried out with the aim of estimating the radial and volumetric growth of the Japanese Cypress trees (Chamaecyperis obstusa and C. pisifera). Destructive method was used while collecting the wood samples from the selected trees. Ring width and ring density were measured using soft X-ray densitometry method using micro-densitometer. Computer programme, developed by the Forestry and Forest Products Research Institute, Japan was used to analyze the ring with and ring density data. The average ring width of the Chamaecyparis spp. was found to be about 3.4 mm at the age of 30 years. However, two types of growth pattern were observed in the trees. Average radial growth was about 5% every year during the first 20 years of the tree age, whereas, the average radial growth was negative during the age of 20–30 years. Average density of the tree rings were increased by about 11% in each height of the trees starting from the ground. Similarly, the stem density decreased by about 3.4% annually along the radial direction from the pith.DOI: http://dx.doi.org/10.3126/banko.v22i2.9197Banko Janakari: A Journal of Forestry Information for NepalVol. 22, No. 2, 2012 November Page: 36-42 Uploaded date: 12/1/2013 

scholarly journals Estimation of Growth Rates Based on Tree-ring Analysis of Cryptomeria japonica on Yakushima Island, Japan

2013 ◽  
Vol 19 (1) ◽  
pp. 1-7
Author(s):  
Shizu Itaka ◽  
Shigejiro Yoshida ◽  
Nobuya Mizoue ◽  
Tetsuji Ota ◽  
Atsushi Takashima ◽  
...  
Keyword(s):  
Tree Ring ◽  
Growth Rates ◽  
Cryptomeria Japonica ◽  
Yakushima Island ◽  
Tree Ring Analysis ◽  
Ring Analysis
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