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Defining high-detail hazard maps by a cellular automata approach: application to Mount Etna (Italy)
automata approach Mount Etna
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2015/8/27
The individuation of areas that are more likely to be affected by new events in volcanic regions is of fundamental relevance for the mitigation of the possible consequences, both in terms of loss of h...
DOWNFLOW code and LIDAR technology for lava flow analysis and hazard assessment at Mount Etna
DOWNFLOW code LIDAR technology
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2015/8/27
The use of a lava-flow simulation (DOWNFLOW) probabilistic code and airborne light detection and ranging (LIDAR) technology are combined to analyze the emplacement of compound lava flow fields at Moun...
Retrospective validation of a lava-flow hazard map for Mount Etna volcano
Lava flow paths MAGFLOW simulator fitting scores temporal validation
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2015/8/27
This report presents a retrospective methodology to validate a long-term hazard map related to lava-flow invasion at Mount Etna, the most active volcano in Europe. A lava-flow hazard map provides the ...
LAV@HAZARD: a web-GIS interface for volcanic hazard assessment
Volcanic hazard Web-GIS Decision support system
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2015/8/27
Satellite data, radiative power of hot spots as measured with remote sensing, historical records, on site geological surveys, digital elevation model data, and simulation results together provide a ma...
Application of BET_EF at Mount Etna: a retrospective analysis (years 2001-2005)
Statistical analysis Collections
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2015/8/27
Advances in volcano monitoring and forecasting need a multidisciplinary collaborative framework. In light of this, a Bayesian Event Tree (BET) approach was performed by the application of the BET for ...
PLUME-MoM 1.0: A new integral model of volcanic plumes based on the method of moments
PLUME-MoM moments
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2015/8/11
In this paper a new integral mathematical model
for volcanic plumes, named PLUME-MoM, is presented.
The model describes the steady-state dynamics of a plume
in a 3-D coordinate system, accounting f...
MONITORING LANDSLIDES AND VOLCANIC DEFORMATION FROM INSAR TECHNIQUES
InSAR Landslide motion Rockslides Volcanic deformation
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2015/7/29
Our research has shown that interferometric SAR techniques can be used to monitor deformation at landslides and volcanoes under
specific conditions. Special filtered interferograms are being used to...
Exploring Submarine Arc Volcanoes
Arc Volcanoes Submarine
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2015/7/22
Three quarters of Earth's volcanic activity occurs beneath the sea, predominantly along the extensive mid-ocean ridge system that winds its way through the major ocean basins. The style of eruptive ac...
New Insights into the Emplacement Dynamics of Volcanic Island Landslides
Volcanic Island Landslides Emplacement Dynamics
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2015/7/17
Volcanic islands form the highest topographic structures on Earth and are the sites of some of the planet's largest landslides. These landslides can rapidly mobilize hundreds of cubic kilometers of ro...
Eruption of South Sarigan Seamount, Northern Mariana Islands: Insights into Hazards from Submarine Volcanic Eruptions
South Sarigan Seamount Northern Mariana Islands:
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2015/7/17
The eruption of South Sarigan Seamount in the southern Mariana arc in May 2010 is a reminder of how little we know about the hazards associated with submarine explosive eruptions or how to predict the...
华北东部海兴一带出露2座第四纪火山, 即小山火山和大山火山, 并在边庄附近隐伏了火山岩。野外考察和室内分析显示: 小山火山为玛珥式火山, 喷发方式为射汽岩浆喷发, 影响范围仅限于火口附近, 喷发物为火山渣、晶屑和火山灰; 大山火山早期为爆破式喷发, 后有岩浆侵入, 喷发强度和规模均不大, 产生了火山渣、火山集块岩和致密熔岩颈。边庄隐伏火山岩为气孔状和致密火山岩及火山角砾岩, 喷发方式以弱爆破式喷发...
基于SVM测井数据的火山岩岩性识别——以辽河盆地东部坳陷为例
火山岩 岩性识别 测井响应
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2015/6/4
辽河盆地东部坳陷储集层由火山多期喷发形成,岩相岩性复杂,岩性以中、基性火山岩为主.本文将火山岩的岩心及岩矿鉴定资料与测井数据进行整合,应用测井数据建立支持向量机(SVM)两分类和多分类岩性识别模式.首先,深入研究支持向量机二分类及"一对一"、"一对多"和有向无环图三种经典多分类算法的基本原理及结构;然后,总结研究区域火山岩岩石特征,分析测井数据的测井响应组合特征,选择40口井中岩心分析和薄片鉴定资...
火成岩储层勘探现状、基本特征及预测技术综述
岩相 测井相 地震属性 反演
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2015/5/15
在大量文献调研和实际应用基础上,对火成岩储层的地质特征、测井响应特征和地震特征进行了客观、全面的分析和总结,研究认为:1国内外火成岩勘探技术还很不成熟,目前其探明储量只占世界总探明量的1%,国外勘探技术报道很少,国内大规模开发的实例也不多;2根据玄武岩、安山岩等测井响应的不同特征及测井交会图板可以识别火成岩的岩性,利用常规测井、辅助其他特殊测井还可以识别裂缝;3火成岩具有较典型的地震相模式:侵入岩...
Formation of a laccolith by magma pulses: Evidence from modal and chemical composition of the 500 m long borehole section through the Permo-Carboniferous Landsberg laccolith (Halle Volcanic Complex)
laccolith formation magma pulses rhyolite Halle Volcanic Complex
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2017/4/10
The 500 m long section through the upper part of the Permo-Carboniferous Landsberg laccolith (Halle Volcanic Complex)
was sampled every 25 meters. The modal proportions between plagioclase and K-feld...