British sex chat Radioactive isotopes in dating fossils

Hutton and Lyell, who held that the history of Earth was dominated by slow relatively uniform changes in an Earth with a static over all history.

During the early part of this period there was a considerable amount of activity by runs from AD 1850 to the present.

The physical models were open to question and, in retrospect, were naive. It became quite clear that many areas of the Earth had alternated between being land and being covered by seas, that there had been extensive slow sedimentation, that the mountains had not been created in situ as is but rather had a long history of slow deformation, and that long periods of erosion had shaped the Earth everywhere.

In this period a number of comprehensive cosmogonies were proposed.

These were long on armchair speculation and short on substantive supporting evidence.

The story of this great change in the conception of the history of Earth is not a simple one.

The chronicle of this great change can be broken into five periods; ran from AD 1600-1700.

The account in Genesis is replete with miracles that do not stand up under rational analysis.

This did not matter; the theological perspective did not require physical rationalization.

Visualize five horizontal sedimentary strata exposed in a canyon wall, identified by consecutive numbers, 1 being the lowest bed and 5 the highest.

Which of the following statements concerning the strata is TRUE?

The selections and comments here are not a complete exposition of the works of the authors mentioned; rather they were chosen to illustrate and exemplify changing perspectives over time.

In Europe the issue of the age of the Earth was not a serious one prior to the rise of science; the history of the Earth was assumed to be accounted for in Genesis.

The ratio of radioactive parent to stable daughter atoms in a mineral is measured as 1:3 (one-third).