Comparison of the Tectonic Conditions on Venus with Tectonic Conditions of Early Archean Earth
نویسنده
چکیده
منابع مشابه
Life Potential on Early Venus Connected to Climate and Geologic History
Introduction: A key observation and open question in the Earth and Planetary Sciences is that the Earth is seemingly unique in that it exhibits plate tectonics and a buffered climate allowing liquid water to exist at the surface over its geologic lifetime. While we know plate tectonics is currently in operation on the Earth, the timing of its onset, the length of its activity, and its prevalenc...
متن کاملThe surface of Venus
Venus is a planet that is similar to Earth in terms of some important planetary parameters (size, mass, position in the solar system, presence of atmosphere) and different in terms of other, equally important ones (absence of an intrinsic magnetic field, large atmospheric mass, carbon dioxide composition of the atmosphere, lack of water, very high surface pressure and temperature). The surface ...
متن کاملTectonics of early Earth: Some geodynamic considerations
Today, plate tectonics is the dominant tectonic style on Earth, but in a hotter Earth tectonics may have looked different due to the presence of more melting and associated compositional buoyancy as well as the presence of a weaker mantle and lithosphere. Here we review the geodynamic constraints on plate tectonics and proposed alternatives throughout Earth’s history. Observations suggest a 100...
متن کاملElectrifying Images of the Slave Craton
The Slave craton in northern Canada is one of the world's smallest Archean cratons (surface exposure of 300,000 km), but makes up for this diminutive stature with excellent exposure and by hosting the oldest dated rocks on Earth (4.03 Ga, Stern and Bleeker 1998). It records continental accretion processes, albeit cryptically, and potentially offers the best opportunity worldwide to address the ...
متن کاملAssessment of Active Tectonic Status Using Analysis of Geomorphic and Morphometric Parameters (Case Study: West Basins of Kermanshah Province)
introduction Active tectonic studies are one of the most important topics in earth science and their results are widely used for assessing natural hazards and land use development and management plans in populated areas (Pedra et al., 2009, 220).Among these, geomorphic indices have been effective in assessing active teconic in large areas due to their high speed and accuracy (Clare & Pinter, ...
متن کامل