How dense is a meteorite?
Most meteorites have densities on the order of 3 to 4 g/cm3, with lower densities only for some volatile-rich carbonaceous meteorites and higher densities for stony irons.
What is the density of carbonaceous chondrites?
The grain densities of all 49 ordinary chondrites are greater than 3.1 g/cc, the grain densities of all 9 anhydrous carbonaceous chondrites are greater than 3.0 g/cc, and the grain densities of the hydrated carbonaceous chondrites range from 2.5 to 3.0 g/cc.
What are Achondrites made of?
An achondrite is a stony meteorite that does not contain chondrules. It consists of material similar to terrestrial basalts or plutonic rocks and has been differentiated and reprocessed to a lesser or greater degree due to melting and recrystallization on or within meteorite parent bodies.
How do chondrules form?
Formation. Chondrules are believed to have formed by a rapid (flash) heating (within minutes or less) and melting of solid dust aggregates of approximately Solar composition under temperatures of about 1000 K. These temperatures are lower than those under which CAIs are thought to have formed.
Are all meteorites heavy?
Density: Meteorites are usually quite heavy for their size, since they contain metallic iron and dense minerals. Magnetic: Since most meteorites contain metallic iron, a magnet will often stick to them.
How do you find the density of a meteorite?
The density of the meteorite is equal to the meteorite mass divided by its volume. The total (also called bulk) volume and density measured above includes the pore spaces inside each meteorite.
Is carbonaceous chondrite magnetic?
In the case of carbonaceous chondrites, the magnetization age is most often a parent body alteration event during which magnetic minerals were either formed or taken to higher than ambient temperatures. One proffers the CV parent bodies as differentiated, with magnetizations resulting from core dynamos [7].
Where are achondrites found on Earth?
Antarctica
A number of lunar meteorites have been found in Antarctica and hot deserts on Earth.
What is the diameter of a typical chondrule?
chondrule, small, rounded particle embedded in most stony meteorites called chondrites. Chondrules are usually about one millimetre in diameter and consist largely of the silicate minerals olivine and pyroxene.
What is a chondrule astronomy?
Chondrules are igneous rocks found within chondritic meteorites, which are the most abundant meteorites found on Earth. These rocks provide science with the age of the Solar System and contain a record of the first solids to form and evolve in the earliest time period of Solar System formation.
What is the density of air?
The density of air or atmospheric density, denoted ρ (Greek: rho), is the mass per unit volume of Earth’s atmosphere. Air density, like air pressure, decreases with increasing altitude. It also changes with variation in atmospheric pressure, temperature and humidity .
What is the density of dry air in kg m3?
At IUPAC standard temperature and pressure (0 °C and 100 kPa), dry air has a density of 1.2754 kg/m 3. At 20 °C and 101.325 kPa, dry air has a density of 1.2041 kg/m 3 . At 70 °F and 14.696 psi , dry air has a density of 0.074887 lb / ft 3 .
How do you find the density of humid air?
The density of humid air may be calculated by treating it as a mixture of ideal gases. In this case, the partial pressure of water vapor is known as the vapor pressure. Using this method, error in the density calculation is less than 0.2% in the range of −10 °C to 50 °C.
What is the specific weight of air at different temperatures?
Specific weight is given as N/m 3 and lb f / ft 3. Note! Temperature must be within the ranges -100 – 1600 °C, -140 – 2900 °F, 175 – 1900 K and 315 – 3400 °R to get valid values. Air density and specific weight at atmospheric pressure: