نتایج جستجو برای: tectonic element

تعداد نتایج: 213582  

2005
Russell L. Wheeler

Paleoseismological study of geologic features thought to result from Quaternary tectonic faulting can characterize the frequencies and sizes of large prehistoric and historical earthquakes, thereby improving the accuracy and precision of seismichazard assessments. Greater accuracy and precision can reduce the likelihood of both underprotection and unnecessary design and construction costs. Publ...

2014
Marilia Tavares Anibal Azevedo

This paper inspects possible influence of solar cycles on earthquakes through of statistical analyses. We also discussed the mechanism that would drive the occurrence of increasing of earthquakes during solar maxima. The study was based on worldwide earthquakes events during approximately four hundred years (16002010).The increase of earthquakes events followed the Maxima of Solar cycle, and al...

2006

Key-words: Earthquakes, Tectonic movements, Stress, DisplaceKljuZne rije* Potresi, Tektonski pokreti, Stres, Pomaci struktura, ment, Seismotectonically active zone Seizmotektonski aktivna zona A permanent seismotectonic activity is present in the region of U podrutju sjevernog Velebita stalno je prisutna seizmotektonska northern Velebit. Through history a number of earthquakes magniaktivnast. U...

Journal: :تحقیقات جغرافیایی 0
عزیز رحیمی چاکدل دانشگاه گلستان مجید نعمتی دانشگاه کرمان مصطفی رقیمی دانشگاه گلستان معصومه روستائی دانشگاه گلستان مریم آق آتابای دانشگاه گلستان

the present study carried out to identify neo tectonic activity of the gorgan river basin in golestan province, in north of eastern alborz range is investigated by four geomorphic indices including the stream– gradient index (sl), drainage basin asymmetry (af), reveres symmetry of topography (t) and mountain front sinuosity (smf). result from the analysis is accumulated and expressed as an in...

2006
P. J. McGovern

Introduction: The Magellan mission to Venus [1] revealed the presence of at least 144 large volcanic edifices (i.e., those with flows extending > 100 km in diameter; Figure 1) [2-4]. Numerical models of coupled edifice growth and lithospheric flexure on Venus [5] revealed that horizontal compression in the upper lithosphere gets transmitted into the edifice, tending to halt magma ascent (and th...

2014
Elhoucine Essefi Goro Komatsu Alberto G. Fairén Marjorie A. Chan Chokri Yaich

Spring mounds on Earth and on Mars could represent optimal niches of life development. If life ever occurred on Mars, ancient spring deposits would be excellent localities to search for morphological or chemical remnants of an ancient biosphere. In this work, we investigate models of formation and activity of well-exposed spring mounds in the Mechertate-Chrita-Sidi El Hani (MCSH) system, easter...

2012
Hoang-Ha Tran

In recent years, tectonic plate movements have caused huge natural disasters, such as the Great Sumatra-Andaman earthquake and the resulting Asian tsunami, which led to significant loss of human lives and properties (Ammon et al., 2005; Lay et al., 2005). Scientific evidences proved it was the beginning of a new earthquake supper-cycle in this active area (Sieh et al., 2008). In order for scien...

Journal: :iranian journal of science and technology (sciences) 2009
j. shahabpour

the study of tectonic evolution of the tethyan and se asian regions indicates that these tworegions have each passed through southwardly progressing sequences of similar tectonic events. both regionshave experienced a southward island-arc subduction and back-arc spreading leading to continentaldetachment from gondwanaland, with an earlier southward island arc subduction of palaeotethys (tethyan...

2000
Bernard Coakley Michael Gurnis

During a brief period of 10 to 15 million years in the Middle-Ordovician, the Michigan Basin departed from its bull's-eye subsidence pattern and tilted toward the east. opening to the Appalachian basin. This tilting is observed in maps of tectonic subsidence estimated for the Black River and Trenton Formations and extends over 300 km across the Michigan Basin and into eastern Wisconsin. Contour...

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