This account of the archaeology of a cave in southern New Mexico makes a dramatic contribution to the ongoing debate over how long human beings have lived in the Americas. The findings presented here show that human settlement may go back as far as 75,000 years before the present, whereas the long-accepted Clovis dates showed humans only about 12,000 years ago. MacNeish and his colleagues subjected the cave, its environs, and its contents to rigorous interdisciplinary investigation. The first section of this volume comprises their reports on the changing environment of the area. The second section concentrates on the excavation of the cave's layers, presenting the results of radiocarbon dating and describing the evidence of human occupation, including friction skin prints and human hair. The third section discusses the cultural implications of the materials recovered and suggests how the ancient peoples may have exploited the changing environment and developed different ways of life throughout the Americas before the time of Clovis man. No serious discussion of early inhabitants in the New World can disregard the findings presented in this monumental work of scholarship.

This volume addresses some of the problems of core-log integration encountered by scientists and engineers from both industry and academia. Core and log measurements provide crucial information about subsurface formations. Their usage, either for integration or calibration, is complicated by the different measurement methods employed, different volumes of formation analysed and, in turn, the heterogeneity of the formations. While the problems of comparing core and log data are only too well known, the way in which these data can be most efficiently combined is not at all clear in most cases. In recent years there has been increased interest in this problem, both in industry and academia, due to developments in technology which offer access to new types of information and, in the case of industry, pressure for improved reservoir models and hydrocarbon recovery. The application of new numerical methods for analysing and modelling core and log data, the availability of core scanning facilities, and novel core measurements in both two and three dimensions, currently provide a framework for the development of new and exciting approaches to core-log integration. The contributions within Core-Log Integration geologically range from hydrocarbon-bearing sediments in the North Sea to the volcanic rocks that form the upper part of the oceanic crust.

The first look at the prehistory of Texas by 16 professional archaeologist.