搜索结果: 1-15 共查到“地球科学总论 Activity”相关记录36条 . 查询时间(0.109 秒)
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...
Evaluation of the US DOE's conceptual model of hydrothermal activity at Yucca Mountain, Nevada
the US DOE's conceptual model hydrothermal activity Yucca Mountain Nevada
2014/12/19
A unique conceptual model describing the conductive heating of rocks in the thick unsaturated zone of Yucca Mountain, Nevada by a silicic pluton emplaced several kilometers away is accepted by the US ...
The Role of Fluids in Promoting Seismic Activity in Active Spreading Centers of the Salton Trough, California, USA
Crustal Model Magmatic Intrusion Salton Trough Seismic Activity Spreading Centers
2013/3/7
We interpret seismic activity in the active spreading centers of the Salton Trough to indicate 1) a magmatic intrusion in the lower crust beneath the active Brawly, Cerro Prieto, Imperial, Elsinore, a...
Local Magnitude Study of the Seismic Activity on Itacarambi, MG
Intraplate Earthquakes Local Magnitude Duration of Seismic Signal Parameter b
2013/3/7
The importance of studying the local magnitude related to seismic activity occurred recently in the region of Itacarambi, state of Minas Gerais, is due to the fact that these were earthquakes of intra...
Determining the Relative Age of Fault Activity through Analyses of Gouge Mineralogy and Geochemistry: A Case Study from Vápenná (Rychleby Mts), Czech Republic
Crystalline Limestone Intersecting Faults Fault Gouge Relative Chronology
2013/3/6
The relative age of fractures can be determined through structural analyses in the field or through the detailed mineralogical (XRD) and chemical analyses (AAS method, volumetric, and gravimetric anal...
Tornado activity in Greece within the 20th century
Tornado activity Greece within the 20th century
2010/9/10
Tornado activity is associated with extreme convective weather which can cause extended damage and even in some cases the loss of life. The complex inland terrain of Greece along with the Ionian Sea a...
Ionospheric quasi-static electric field anomalies during seismic activity in August–September 1981
Ionospheric quasi-static electric field anomalies seismic activity August–September 1981
2009/12/16
The paper proposes new results, analyses and information for the plate tectonic situation in the processing of INTERCOSMOS-BULGARIA-1300 satellite data about anomalies of the quasi-static electric fie...
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...
Analysis of the ULF electromagnetic emission related to seismic activity, Teoloyucan geomagnetic station, 1998-2001
the ULF electromagnetic emission seismic activity Teoloyucan geomagnetic station
2009/12/14
Results of ULF geomagnetic measurements at station Teoloyucan (Central Mexico, 99.11'35.735''W, 19.44'45.100''N, 2280m height) in relation to seismic activity in the period 1998-2001 and their analysi...
Diurnal changes of earthquake activity and geomagnetic Sq-variations
Diurnal changes earthquake activity geomagnetic Sq-variations
2009/12/11
Statistic analyses demonstrate that the probability of earthquake occurrence in many earthquake regions strongly depends on the time of day, that is on Local Time (e.g. Conrad, 1909, 1932; Shimshoni, ...
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...
Neutron flux variations near the Earth’s crust. A possible tectonic activity detection
Neutron flux variations the Earth’s crust A possible tectonic activity detection
2009/12/10
The present work contains some results of observations of neutron flux variations near the Earth’s surface. The Earth’s crust is determined to be a significant source of thermal and slow neutrons, ori...
Reassessment of the historical seismic activity with major impact on S. Miguel Island (Azores)
the historical seismic activity major impact S. Miguel Island
2009/12/10
On account of its tectonic setting, both seismic and volcanic events are frequent in the Azores archipelago. During the historical period earthquakes and seismic swarms of tectonic and/or volcanic ori...
Connection between ENSO phenomena and solar and geomagnetic activity
ENSO phenomena solar geomagnetic activity
2009/12/9
Connections between El Niño – Southern Oscillation (ENSO) phenomena and indices of solar activity and geomagnetic disturbance were investigated. Spectral analysis of the ENSO-data was carried o...
Study of electromagnetic emissions associated with seismic activity in Kamchatka region
electromagnetic emissions seismic activity Kamchatka region
2009/12/9
A review of data processing of electromagnetic emission observation collected at the Complex Geophysical Observatory Karimshino (Kamchatka peninsula) during the first 5 months (July–November, 2000) of...