Stratigraphic layers are not always easily distinguished. Factors to take into consideration include: colour, texture, matrix, and presence and absence of materials, such as shell. This layer does not ...

The science of archaeological stratigraphy is based upon a series of laws or axioms. Several of these laws are discussed in this paper and have been adapted previously from geological sources. A new ...

Arduino, the man behind modern stratigraphy It was through a letter dated March 30, 1579 that Giovanni Arduino announced the four orders that form the basis of stratigraphic chronology. Join A.S ...

It is well known that at various locations and at various depths around the Valley are foci of workmen's huts. As in some cases it is possible to date the hut horizons, these horizons themselves are ...

The review paper briefly summarizes the historical narrative of the present international chronostratigraphic framework of the Cambrian System and recent advances and problems of the undefined ...

Books Received Published: 21 January 1904 The Palaeontology and Stratigraphy of the Marine Pliocene and Pleistocene of San Pedro, California B. B. W. Nature 69, 266 (1904) Cite this article ...