Geoscience Network, Dhaka. 50,973 likes · 1,074 talking about this. Explore the Earth -Geoscience here
The Association of Environmental and Engineering Geologists (AEG) has launched an online Geoscience Library of Applied Technology. ...
Satellite Applications for Geoscience Education
Bringing the Earth to life
The field of geoscience is rapidly expanding in many parts of the world, as we seek more sophisticated ways to gather energy and use natural resources responsibly. However, it suffers from a shortage of new blood, especially people from diverse backgrounds. At Triton College in Illinois, Dr Sheldon Turner’s GENIUS programme aims to change that.
This 30 piece set features images pertaining to earthquakes. Included are 3 different types of faults, an example of plate boundaries, an example of epicenter and focus, structural damage, a tsunami diagram, and a seismology graph with P waves, S waves and Surface waves. The set includes 14 PNG co...
Using TLS and Structure from Motion (SfM) Photogrammetry in Undergraduate Field Education; Cardwell, Montana, 16–19 August 2016
A person who doesn’t have a bachelor's level education in engineering or geosciences but has professional experience in engineering or geoscience that was supervised by a licensed professional in Canada can be an Engineering Licensee or Geoscience Licensee.
I partnered with Geoscience Australia to create educational booklets about earthquakes, volcanoes and tsunami. Suitable for communities in Papua New Guinea.
Prof Bram Murton and the Marine E-Tech team research deep ocean mining of marine ferromanganese deposits to obtain critical elements for green technologies
A conceptual framework for the origin of the Moon must explain both the chemical and the mechanical characteristics of the Earth–Moon system to be viable. The classic concept of an oblique giant impact explains the large angular momentum and the lack of a large iron-rich core to the Moon, but in this scenario it is difficult to explain the similarity in the isotopic compositions of the Earth and Moon without violating the angular momentum constraint. Here we propose that a giant, solid impactor hit the proto-Earth while it was covered with a magma ocean, under the conventional collision conditions. We perform density-independent smoothed particle hydrodynamic collision simulations with an equation of state appropriate for molten silicates. These calculations demonstrate that, because of the large difference in shock heating between silicate melts and solids (rocks), a substantial fraction of the ejected, Moon-forming material is derived from the magma ocean, even in a highly oblique collision. We show that this model reconciles the compositional similarities and differences between the Moon and Earth while satisfying the angular momentum constraint. Moon formation by a giant impact ejecting material from a magma ocean on Earth reconciles geochemical and dynamical constraints on its formation, according to numerical simulations.
While they have the exact same literal definition, Earth science, geoscience and geology can mean different things depending on who you ask.
Essentially, Geology is the study of the materials that Earth is constructed of, how those materials are structured, and what processes in...
When I learned that people could dig their own quartz and amethyst crystals on a public access trail that was just minutes from downtown Seattle, my interest
By incorporating traditional knowledge in geoscience education and research, Dr Judith Brown Clarke and Dr Wendy K’ah Skaahluwaa Todd hope to improve diversity in science by increasing the participation of Indigenous students and researchers.
Dr Denise Kulhanek, at the Christian-Albrechts-University of Kiel in Germany, Dr Brian Romans, at Virginia Tech in the US, and Dr Molly Patterson, from Binghamton University in the US, are delving deep into Antarctica’s geological past to understand how the Antarctic Ice Sheet is likely to be affected by rising global temperatures.
In the absence of global plate tectonics, mantle convection and plume–lithosphere interaction are the main drivers of surface deformation on Venus. Among documented tectonic structures, circular volcano-tectonic features known as coronae may be the clearest surface manifestations of mantle plumes and hold clues to the global Venusian tectonic regime. Yet, the exact processes underlying coronae formation and the reasons for their diverse morphologies remain controversial. Here we use three-dimensional thermomechanical numerical simulations of impingement of a thermal mantle plume on the Venusian lithosphere to assess the origin and diversity of large Venusian coronae. The ability of the mantle plume to penetrate into the Venusian lithosphere results in four main outcomes: lithospheric dripping, short-lived subduction, embedded plume and plume underplating. During the first three scenarios, plume penetration and spreading induce crustal thickness variations that eventually lead to a final topographic isostasy-driven topographic inversion from circular trenches surrounding elevated interiors to raised rims surrounding inner depressions, as observed on many Venusian coronae. Different corona structures may represent not only different styles of plume–lithosphere interactions but also different stages in evolution. A morphological analysis of large existing coronae leads to the conclusion that at least 37 large coronae (including the largest Artemis corona) are active, providing evidence for widespread ongoing plume activity on Venus. Thermomechanical modelling shows that the formation and diverse morphologies of coronae on Venus can be explained by interactions between the lithosphere and impinging mantle plumes. Some corona structures are consistent with ongoing plume activity.
Get an introduction to geology. Discover where materials that make up everyday objects come from and how to use them sustainably.
