4 rules of relative dating

30-Sep-2017 17:54

Everything around us is made of chemical compounds that have testable and identifying characteristics, allowing them to be classified, and their age determined.This also applies to rocks, minerals, and derivative materials (such as sediments and soil).Basic concepts of chemistry are essential to understanding the physical and chemical properties of earth materials (minerals, rocks, organic matter, etc.).The chemical characteristics of earth materials are reflect the environments how and where they are formed, they also determine their potential fate when exposed to chemical changes.The science of geology is founded on basic principles that are useful for making observations about the world around us.This chapter presents a mix of information that is essential (fundamental) to all following chapters.A chemical element is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus.Common examples of elements are iron, copper, silver, gold, hydrogen, carbon, nitrogen, and oxygen.

4 rules of relative dating-32

Of these, 92 are naturally occurring (prior to development of artificial nuclear research and development).

For example, the element carbon has 3 isotopes: C is unstable and will undergo radioactive decay.

All there isotopes have 6 protons, but have 6, 7, and 8 neutrons, respectively.

For instance, rocks and minerals formed deep underground may not be stable in the surface environment where they are exposed to water, air, temperature changes, and other physical and chemical conditions.

All matter is made up of atoms, and atoms are made up of atomic particles (electrons, protons, and neutrons - see Figure 2-5).

Of these, 92 are naturally occurring (prior to development of artificial nuclear research and development).For example, the element carbon has 3 isotopes: C is unstable and will undergo radioactive decay.All there isotopes have 6 protons, but have 6, 7, and 8 neutrons, respectively.For instance, rocks and minerals formed deep underground may not be stable in the surface environment where they are exposed to water, air, temperature changes, and other physical and chemical conditions.All matter is made up of atoms, and atoms are made up of atomic particles (electrons, protons, and neutrons - see Figure 2-5).The chemical composition of Earth's crust has similarities with other stony planets, with silicate-rich rocks being dominant in most locations on the surface.