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What does positive gravity indicate in geology?
Positive gravity anomalies in geology indicate areas where the density of subsurface material is higher than average. This can be caused by denser rock types, such as iron-rich minerals, or by the presence of denser materials like metallic ores or large underground structures. Positive gravity anomalies can be useful for identifying potential mineral deposits or mapping subsurface geological structures.
What is associated with the formation of salt domes?
Salt domes are formed by the upward movement of salt deposits due to their density relative to surrounding rocks. This creates structures that can trap oil and gas deposits, making salt domes important targets for oil and gas exploration. Additionally, salt domes can sometimes cause geological disturbances like earthquakes and land subsidence.
Why do minerals have the nonsilicate crystalline structure called closest packing have high density?
Minerals with closest packing crystalline structures have high density because the atoms or ions in these structures are closely packed together in an efficient manner, leaving little empty space between them. This results in a higher mass per unit volume, leading to a higher overall density of the mineral.
True or false Convection currents form because of differences of temp and density in a fluid?
True. Convection currents are driven by temperature and density differences in a fluid. Warmer, less dense fluid rises, while cooler, denser fluid sinks, creating a circular flow pattern.
Which is a cause of density currents?
Density currents are caused by differences in water density. This can be due to variations in temperature, salinity, or both. When denser water sinks and interacts with lighter water, it creates a current that moves along the density gradient.
What does positive gravity indicate in geology?
Positive gravity anomalies in geology indicate areas where the density of subsurface material is higher than average. This can be caused by denser rock types, such as iron-rich minerals, or by the presence of denser materials like metallic ores or large underground structures. Positive gravity anomalies can be useful for identifying potential mineral deposits or mapping subsurface geological structures.
Why does CT have a better ability to visualize low contrast resolution than XRay?
As CT can identify structures that have physical density differences less than 1%. On the other hand X ray films can identify structures having density difference of about 10%.
What drives current deep in the ocean?
C- DIFFERENCES IN WATER DENSITY
What causes unequal pressure?
Unequal pressure can be caused by differences in temperature, altitude, and physical barriers such as walls or structures that block air flow. These differences create variations in air density, resulting in variations in air pressure.
The movement of material due to differences in density that are caused by differences in temperature is called what?
The movement of material due to differences in density caused by differences in temperature is called convection.
Who specializes in exploring the subsurface with magnetic gravity or seismic surveys?
Geophysicists specialize in exploring the subsurface using magnetic, gravity, and seismic surveys. They use these techniques to detect variations in the Earth's subsurface properties, such as rock density, composition, and structure, to help locate natural resources like oil, gas, and minerals.
The varying shades of gray on a processed radiograph is termed?
The varying shades of gray on a processed radiograph are known as radiographic density. This density represents differences in the degree of x-ray attenuation by the tissues, resulting in the visualization of different structures on the image.
What Structures of high density are in the body?
skeleton
Differences in a material's is what drives convection?
Differences in a materials __________ is what drives convection
The differences in a materials is what drives convection?
Density
What does gravity mapping show?
Gravity mapping reveals variations in Earth's gravitational field, which can indicate differences in subsurface density and composition. This information helps scientists understand geological structures, such as mountains, valleys, and mineral deposits, as well as tectonic activity. Additionally, gravity mapping is used in various applications, including oil and gas exploration, archaeological investigations, and assessing natural hazards. By analyzing these gravitational anomalies, researchers can gain insights into the planet's internal processes and history.
What currents caused by temperature and density differences?
deep
