搜索结果: 1-14 共查到“理学 Volcanic activity”相关记录14条 . 查询时间(0.107 秒)
Scientists last autumn revealed that the gas phosphine was found in trace amounts in Venus’ upper atmosphere. That discovery promised the slim possibility that phosphine serves as a biological signatu...
Volcanic activity and changes in Earth's mantle were key to rise of atmospheric oxygen（图）
Volcanic activity changes Earth mantle were key rise atmospheric oxygen
2020/6/19
Oxygen first accumulated in the Earth's atmosphere about 2.4 billion years ago, during the Great Oxidation Event. A long-standing puzzle has been that geologic clues suggest early bacteria were photos...
Maximum entropy estimation of values at Mt. Etna: comparison with conventional least squares and maximum likelihood results and correlation with volcanic activity
frequency-magnitude distribution maximim entropy method Mt. Etna
2015/10/8
The variations of the b coefficient in the frequency-magnitude relationship for earthquakes which occurred at Mt. Etna from 01/01/90 to 31/12/92 are analyzed; the completeness threshold for our earthq...
Self-potential chenges associated with volcanic activity:Short-term signals associated with March 9,1998 eruption on La Fournaise volcano (Reunion Island)
self-potential electric precursor ULF band self-potential mapping eruption
2015/9/28
After six years of quietness La Fournaise volcano entered into activity on March 9, 1998. Fissures opened gradually downwards on the northern flank of the cone. Two cones, Kapor and Krafft built, from...
Advanced satellite technique for volcanic activity monitoring and early warning
Etna AVHRR SEVIRI ash cloud detection volcanic thermal anomalies Robust Satellite Techniques early warning
2015/9/1
Nowadays, satellite remote sensing is an important tool for volcanic activity monitoring, thanks to several operational
satellite platforms providing data everywhere with high observational frequenci...
RSTVOLC implementation on MODIS data for monitoring of thermal volcanic activity
Etna MODIS hot spots RSTVOLC
2015/8/27
An optimized configuration of the Robust Satellite Technique (RST) approach was developed within the framework of the ‘LAVA’ project. This project is funded by the Italian Department of Civil Protecti...
Evidence of persistent seismo-volcanic activity at Marsili seamount
Marsili Seamount Seismo-volcano activity OBS/H
2015/8/24
The Marsili submarine volcano is the largest European volcano, and it can be considered as the key to our understanding of the dynamics of the spreading and back-arc lithosphere formation in the Tyrrh...
Short-lived tectonic switch mechanism for long-term pulses of volcanic activity after mega-thrust earthquakes
Short-lived tectonic switch mechanism long-term pulses volcanic activity mega-thrust earthquakes
2015/1/6
Eruptive rates in volcanic arcs increase significantly after subduction mega-thrust earthquakes. Over short to intermediate time periods the link between mega-thrust earthquakes and arc response can b...
Can vesicle size distributions assess eruption intensity during volcanic activity?
volcanic activity vesicle size
2015/1/5
We studied three-dimensional (3-D) vesicle size
distributions by X-ray microtomography in scoria collected
during the relatively quiescent Phase II of the April–May
2010 eruption at Eyjafjallaj...
Disturbances in groundwater chemical parameters related to seismic and volcanic activity in Kamchatka(Russia)
Disturbances groundwater chemical parameters seismic and volcanic activity
2009/12/14
Starting from 1992 geochemical data are being collected with a mean sampling frequency of three days in the form of the pH value and of the most common ions and gases in the groundwater in one deep we...
Simulation of tsunamis induced by volcanic activity in the Gulf of Naples (Italy)
tsunamis induced volcanic activity the Gulf of Naples (Italy)
2009/12/10
The paper explores the potential of tsunami generation by pyroclastic flows travelling down the flank of the volcano Vesuvius that is found south of Naples in Italy. The eruption history of Vesuvius s...
Stratigraphy and Geochemical Features of the Early Miocene Bimodal (Ultrapotassic and Calc-alkaline) Volcanic Activity Within the NE-trending Selendi Basin, Western Anatolia, Turkey
Western Anatolia lamproite ultrapotassic volcanism bimodal volcanism continental extension
2009/7/7
Western Anatolia has experienced thickening and orogenic collapse subsequent to the Eocene continent-arc collision. The early stage of the post-collisional volcanism in the region was thought to have...
Combination of SAR remote sensing and GIS for monitoring subglacial volcanic activity–recent results from Vatnajökull ice cap (Iceland)
SAR remote sensing GIS subglacial volcanic activity recent results ice cap
2009/12/30
This paper presents latest results from the combined use of SAR (Synthetic Aperture Radar) remote sensing and GIS providing detailed insights into recent volcanic activity under Vatnajökull ice c...
Scientists Confirm Link between Volcanic Activity and Ancient Warming Event（图）
volcanic activity Ancient Warming Event
2007/4/27
26 April 2007，Scientists suggest gasses released during heavy volcanic activity may have triggered the Paleocene-Eocene thermal maximum, a period of climate change marked by a rise in global temperatu...