Dating antarcic meteorites goranga dating games
Y-791197 is a polymict microbreccia containing clasts in a dark brown glassy matrix, similar to lunar anorthositic regolith breccias.
Two or more types of clasts are observed in the thin section, such as polymineralic, monomineralic and melt clasts.
The slope of the line determines the date, and the closeness of fit is a measure of the statistical reliability of the resulting date.
The Solar System was formed around 4.6 billion years ago, out of the collapse of a dense cloud composed of dusts and gases.
Whenever possible we design an age study to take advantage of other ways of checking the reliability of the age measurements.
Radiometric dating is self-checking, because the data (after certain preliminary calculations are made) are fitted to a straight line (an "isochron") by means of standard linear regression methods of statistics.
One clast (SA) consists of rounded euhedral pleonaste spinel enclosed in anorthite.
There are other known asteroids that do not orbit within the Main Belt (such as various near Earth objects or NEOs), and some of these also could be sources of meteorites.
The most prevalent meteorites found on Earth contain small, partly glassy spheres called chondrules, and such rocks are termed chondrites (of at least 14 different types).
This age has been determined with the radioactive dating technique.
The simplest means is to repeat the analytical measurements in order to check for laboratory errors.