A Comparative Analysis of the Seismotectonic Characteristics of the North Anatolian Fracture Zone and the Fracture System of Inner Dinarides

1982 ◽  
pp. 193-206
Author(s):  
Boris Sikošek
Keyword(s):  
Comparative Analysis ◽  
Fracture Zone ◽  
Fracture System ◽  
The North

Prediction of the Sungpan-Pingwu earthquakes, August 1976

1980 ◽  
Vol 70 (4) ◽  
pp. 1199-1223
Author(s):  
Robert E. Wallace ◽  
Ta-Liang Teng
Keyword(s):  
Fracture Zone ◽  
Time Window ◽  
Substantial Reduction ◽  
Good Time ◽  
Large Space ◽  
Republic Of China ◽  
Plant Behavior ◽  
The North ◽  
Axis Parallel ◽  
Mass Evacuation

abstract On August 16, 22, and 23, 1976, a succession of three large earthquakes (M = 7.2, 6.8, 7.2) occurred in the Sungpan-Pingwu area of Szechuan Province, People's Republic of China. Their successful predictions resulted in a substantial reduction in the loss of lives. The epicenters of these events progressed from north to south along the Huya Fault, a NNW-striking fault between the NE-trending Lungmenshan fracture zone and the north-trending Mienchiang fracture zone in western Szechuan. The greatest intensity reported was IX; isoseismals were crudely elliptical with the long axis parallel to the trend of the Huya Fault. The predictions were made with a reasonably good magnitude window (less than 0.5 magnitude unit), a rather large space window (about 150 km ×150 km), and a remarkably good time window (within a day). The detailed prediction process began with field monitoring some 6 yr before the Sungpan-Pingwu events and ended with the final issuance of warning and mass evacuation. During the few weeks preceding the earthquakes, about 1,300 observations of noninstrumental anomalies and precursory phenomena were reported by scientists and lay brigades: outgassings, fireballs and other earthquake lights, abnormal animal and plant behavior, and telluric currents.

Petrology of a transform fault zone and adjacent ridge segments

1971 ◽  
Vol 268 (1192) ◽  
pp. 423-441 ◽  
Keyword(s):  
Oceanic Crust ◽  
Fault Zone ◽  
Fracture Zone ◽  
Volcanic Eruptions ◽  
Spreading Ridge ◽  
Transform Fault ◽  
Transform Faults ◽  
Near Surface ◽  
The North ◽  
Transform Fault Zone

The Verna Fracture Zone in the North Atlantic (9 to 11° N), which has been identified as a transform fault zone, contains exposures of serpentinized peridotites, while its adjacent ridge segments are floored mainly by typical abyssal ocean ridge basalts. This petrologic contrast correlates with the greater frequency of volcanic eruptions along the actively spreading ridge segments compared to the transform fault zone. Where rifting components occur across transform faults, exposures of the deeper zone of oceanic crust may result. The bathymetry of the Verna Fracture Zone suggests that some uplift parallel to the fracture zone as well as rifting led to exposures of deeper rocks. The basalts from the adjacent ridge axes contain ‘xenocrysts’ of plagioclase and olivine and more rarely of chromite. These appear to have a cognate origin, perhaps related to cooling and convection in near surface magma chambers. The basalts from the ridge axes, offset and on opposite sides of the transform fault, have similar features and compositions. The plagioclase peridotites have mineralogical features which indicate equilibration in the plagioclase pyrolite facies, suggesting maximum equilibration depths of around 30 km for a temperature of around 1200 °C. The chemical characteristics of the Vema F.Z. peridotites suggest that they may be undifferentiated mantle, emplaced as a subsolidus hot plastic intrusion or as a crystal mush. The abundance of peridotites and serpentinized peridotites is believed to reflect their abundance in seismic layer three of the oceanic crust.

A Comparative Analysis of Smallholders Tapping Practices in Four Rubber Producing Regions of Thailand

2013 ◽  
Vol 844 ◽  
pp. 34-37 ◽  
Author(s):  
Bénédicte Chambon ◽  
Suttipong Angthong ◽  
Chaiya Kongmanee ◽  
Buncha Somboonsuke ◽  
Sophie Mazon ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Leaf Fall ◽  
The South ◽  
Potential Yield ◽  
The Real ◽  
Rubber Plantations ◽  
The North ◽  
Differentiation Factors

Rubber has been grown for long in the South and East of Thailand. Since 2005, rubber plantations have largely spread to new regions, in the North and above all in the Northeast. Tapping is one of the most important practices to optimize the yield of rubber plantations and farmers income [. If tapping practices are well documented in the traditional growing areas [2, , we lack information for the new rubber producing regions. And so far, no study has been done at the level of the country. Therefore, a survey was conducted with 219 rubber farmers from 10 provinces in four rubber producing regions to describe farmers tapping practices. The objective was to compare farmers practices in the different regions and try to identify some standardization or differentiation factors. Results show that tapping systems used by the farmers vary with the region but everywhere, even in the South and Centre east, the real tapping practices are not really intensive. Tapping practices seem to be linked to farmers rubber experience, the size of mature plantation, the rainfall and the length of the leaf-fall period. So finally, tapping days are irregularly distributed throughout the year which probably affects latex physiology and so, the potential yield of rubber plantations.

The North Carolina Charter Boat Fishery Changing with the Times: A Comparative Analysis of the Catch Composition (1978 and 2007–2008)

Fisheries ◽  
2015 ◽  
Vol 40 (5) ◽  
pp. 222-233 ◽  
Author(s):  
Andrea Dell'Apa ◽  
Evan Knight ◽  
Anthony S. Overton ◽  
Craig E. Landry ◽  
Christopher F. Dumas ◽  
...  
Keyword(s):  
North Carolina ◽  
Comparative Analysis ◽  
The North ◽  
The Times ◽  
Catch Composition
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