(SLIDE 1) Good morning, for those of you whom I haven’t spoken to outside of class- my name is Fiona. This essay (presentation) will focus solely on gravity anomalies of sedimentary basins and their mechanical implications. (SLIDE 2)The general structure of this presentation shall be presented in the following manner:-
- Definitions
- Introductory knowledge
- Bouguer anomaly
- Case Study: Ross River Basin
- Questions
(SLIDE 3)- By definition, a gravity anomaly is the dissimilarity concerning the observed acceleration of a sphere’s response to gravity and a value predicted from a model (Reference). Therefore, a positive abnormality unveils a lower value than predicted- and a negative model would be on the opposite side of that spectrum when observing a map. The anomaly is the outcome that causes deviation from the “ideal gravity model” (Reference). Sedimentary basins are large low-lying areas that are dependent on lithospheric flexure. They’re formed due to convergent, divergent and transform boundaries, creating room for sediment infill (Reference). …show more content…
According to the Earth Observatory by the National Aeronautics and Space Administration, the relationship between gravity recovery and climate experience is depicted in two principal ways:
- Gravity Anomaly Maps (Explain projections, origin, Landsat etc.)
- Maps of the Earth’s Geoid
“Gravity anomaly maps show how much the earth’s actual gravity field differs from the gravity field of a uniform, featureless earth surface.” (Reference) Gravity anomalies are usually due to unusual concentrations of mass in a region (Reference). For example, the presence of mountain ranges will usually cause the gravitational force to be more than it would be on a featureless
- Definitions
- Introductory knowledge
- Bouguer anomaly
- Case Study: Ross River Basin
- Questions
(SLIDE 3)- By definition, a gravity anomaly is the dissimilarity concerning the observed acceleration of a sphere’s response to gravity and a value predicted from a model (Reference). Therefore, a positive abnormality unveils a lower value than predicted- and a negative model would be on the opposite side of that spectrum when observing a map. The anomaly is the outcome that causes deviation from the “ideal gravity model” (Reference). Sedimentary basins are large low-lying areas that are dependent on lithospheric flexure. They’re formed due to convergent, divergent and transform boundaries, creating room for sediment infill (Reference). …show more content…
According to the Earth Observatory by the National Aeronautics and Space Administration, the relationship between gravity recovery and climate experience is depicted in two principal ways:
- Gravity Anomaly Maps (Explain projections, origin, Landsat etc.)
- Maps of the Earth’s Geoid
“Gravity anomaly maps show how much the earth’s actual gravity field differs from the gravity field of a uniform, featureless earth surface.” (Reference) Gravity anomalies are usually due to unusual concentrations of mass in a region (Reference). For example, the presence of mountain ranges will usually cause the gravitational force to be more than it would be on a featureless