Is the Principle of Original Horizontality a good indicator?
Earth ScienceAsked by: Craig Wiseman What best describes the principle of original horizontality? The principle of original horizontality states that layers of sediment are originally deposited horizontally under the action of gravity. It is a relative dating technique. The principle is important to the analysis of folded and tilted strata. What is the meaning of original
What are the boundary conditions for Navier’s Equations of motion in seismic?
Earth ScienceAsked by: Shawn Wade What is seismic wave equation? 3.1. Seismic wave equation. The 1D time-dependent seismic wave equation in an isotropic and homogeneous medium can be expressed by (Sheriff and Geldart, 1995):(24) ∂ 2 u ( x , t ) ∂ t 2 − V 2 ∂ 2 u ( x , t )
Water on Mars and Earth
Earth ScienceAsked by: Shawn Wade The ice on Mars is a little bit different than on Earth. On Earth, usually the ice is just, you know, water ice. But on Mars, it’s actually water ice and CO2 ice mixed with each other. How much water is on Earth vs Mars? The Mars Odyssey neutron spectrometer observations
How Hot was the Oligocene?
Earth ScienceAsked by: Ana Gonzalez Oligocene GMSTs were ∼22 to 24 °C (Fig. 3A), thus not significantly different from those of the late Eocene, 23 °C, and >8 °C higher than modern rather than ∼5 °C (e.g., refs. 42, 69). What was the climate like in the Oligocene? During the Oligocene, Eurasian mid-high latitudes were mainly
Climate on Venus after it becomes tidally locked
Earth ScienceAsked by: Michael Hoff What would weather be like on a tidally locked planet? Tidal-locking planets receive very uneven stellar heating because their one side permanently faces their stars and the other remains dark. While the dayside can be warm enough to sustain liquid water, the nightside could be so cold that any gases would
What are we seeing when we see the curvature of Earth?
Energy & ResourcesAsked by: Michael Hoff It is possible to see the effect of the curvature of the earth from sea level (ships disappearing over the horizon). To actually see the curvature directly (ie to be able to see the horizon as an arc, rather than a straight line) requires an altitude of over 50,000 feet. How