نتایج جستجو برای: volcanic belt

تعداد نتایج: 31742  

احمدی مقدم, پریچهر, احمدی پور, حمید, مرتضوی, محسن, پوستی, محمد,

The Hormuz Formation is a sequence of lithologically various evaporitic–volcanic rocks in salt domes where the volcanic rocks are dominantly acidic, generally with less than one third basic volcanics. It was formed in the Late Proterozoic (640–620 Ma)/Neoproterozoic–Early Cambrian, as a result of sub-basin rifting in the northern part of the Arabian plate, throughout most of the Persian Gulf Ba...

Alavi, , Yadegari, ,

Arazgoni Kaolin deposit is located in East Azarbaijan Province, about 18 km south of Qara Aghaj, the center of Charoymaq city. The area under investigation, in the geological zoning of Iran, is a part of the Urmia-Dokhtar volcanic-plutonic belt. Most of the study area is composed of volcanic rocks with Oligo-Miocene dacite-andesitic composition which have been strongly altered by hydrothermal a...

2005
J. Bruce H. Shyu Kerry Sieh Yue-Gau Chen Char-Shine Liu

The disastrous effects of the 1999 Chi-Chi earthquake in Taiwan demonstrated an urgent need for better knowledge of the island’s potential earthquake sources. Toward this end, we have prepared a neotectonic map of Taiwan. The map and related cross-sections are based upon structural and geomorphic expression of active faults and folds both in the field and on shaded-relief maps prepared from a 4...

Journal: :Geological Society of America Bulletin 2022

Abstract Since the Paleozoic, tectonic evolutionary process of eastern Eurasia has been affected by at least three paleo-ocean regimes: Paleo-Asian Ocean, Mongol-Okhotsk and Paleo-Pacific Ocean. However, transition among these ocean regimes is not well understood. Recently, Heilongjiang Ocean was proposed to play an important role during from regime (and later Ocean) regime. Here we report on a...

Journal: :Journal of South American Earth Sciences 2021

New isotopic and geochemical data for the Paleo- Meso- Neoproterozoic metasedimentary cover of southern Dom Feliciano Belt (Brasiliano/Pan-African) are presented evaluated combined with published information. Whole-rock major trace element geochemistry indicates that dominant source all units had a composition similar to average upper continental crust. The is even late Ediacaran successions co...

2011
Miha Boltežar

In the past decade the applicability of belt-drives has been extended significantly due to their increased reliability. With automotive engines it is now common to join a large number of belt-drives into a single, long belt-drive with several tensioner pulleys. However, these belt-drives can exhibit complex dynamic behaviors; therefore it is very important to predict the dynamics response of su...

Journal: :Traffic injury prevention 2008
Anders Lie Maria Krafft Anders Kullgren Claes Tingvall

OBJECTIVE Many modern cars have seat belt reminders (SBRs) using loud and clear sound and light signals. These systems have developed over the last few years. This study investigates how these modern systems influence the seat belt use in real-life traffic in built-up areas in some European cities. METHODS The data were collected by field observations in major cities in six European countries...

2013
Jérémie Vasseur Fabian B Wadsworth Yan Lavallée Kai-Uwe Hess Donald B Dingwell

[1] Sintering and densification are ubiquitous processes influencing the emplacement of both effusive and explosive products of volcanic eruptions. Here we sinter ash-size fragments of a synthetic National Institute of Standards and Technology viscosity standard glass at temperatures at which the resultant melt has a viscosity of ∼108-109 Pa.s at 1bar to assess sintering dynamics under near-sur...

Journal: :Traffic injury prevention 2010
Neil K Chaudhary Julie Tison Tara Casanova

Maine upgraded its seat belt law to primary enforcement on September 20, 2007. Belt observations during the day and night were conducted along with awareness surveys in state licensing offices. Both daytime and nighttime observed belt use increased in the months following implementation of the law (daytime 77-84%; night 69-81%). Although daytime belt use was generally higher, nighttime belt use...

2005
Roger del Moral Sergei Yu. Grishin

Volcanic eruptions are major natural disturbances with varied and complex consequences. Recent studies of how plants colonize newly created volcanic surfaces already have begun to clarify our understanding of succession. Because volcanoes create disturbance mosaics, it is imperative that we more fully understand the biotic responses. The 1883 eruption of Krakatau captured the world’s imaginatio...

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