Gajiganna

Gajiganna
Author: Karl Peter Wendt
Publisher: Africa Magna Verlag
Total Pages: 222
Release: 2007-11-01
Genre: History
ISBN: 9783937248103

In this volume, Karl Peter Wendt presents the first comprehensive results of a series of archaeological excavations carried out at sites of the earliest food-producing communities known in the Chad Basin of Northeast Nigeria: the so-called Gajiganna Culture. He describes the background of research, sheds light on the information contained in the stratigraphies of the sites examined, and offers exhaustive and advanced statistical analysis on technological, temporal, typological and ornamental aspects of the pottery recovered in course of research. After considering the ceramic sequence in its absolute chronological framework, the author makes an attempt to detect possible cultural relations between the Gajiganna sites and other archaeological locations both within and outside the Chad Basin. The volume is complemented by a photographic documentation of the Gajiganna pottery assemblages.

IGCP Catalogue

IGCP Catalogue
Author: International Geological Correlation Programme
Publisher:
Total Pages: 386
Release: 1985
Genre: Geology
ISBN:

Sustainable Land Use in Deserts

Sustainable Land Use in Deserts
Author: Siegmar-W. Breckle
Publisher: Springer Science & Business Media
Total Pages: 473
Release: 2012-12-06
Genre: Science
ISBN: 364259560X

Changing desert areas for land use implies a lot of ecological problems. These and related ones are dealt with in this book covering various interdisciplinary and international aspects. Large areas in arid and semi-arid regions are already polluted in various ways. One of the biggest problems is the anthropogenic salinization by inadequate means of agriculture and irrigation. Additionally, most arid areas in the world are dramatically overgrazed. Methods and practices of a sustainable land use in deserts are urgently needed in many arid regions. This book gives a broad survey on some of the affected regions of the world as well as some case studies from elsewhere (Aral Sea, Negev desert, Namib desert etc.). Thus, basic and applied sciences are brought together. Water management in deserts, grazing systems or reclamation of desertified areas are among the topics of this book, as well as social and economic aspects.

Paleoclimatology and Paleometeorology: Modern and Past Patterns of Global Atmospheric Transport

Paleoclimatology and Paleometeorology: Modern and Past Patterns of Global Atmospheric Transport
Author: Margaret Leinen
Publisher: Springer Science & Business Media
Total Pages: 904
Release: 2012-12-06
Genre: Science
ISBN: 9400909950

The NATO Advanced Research Workshop on "Paleoclimatology and Paleometeorology: Modem and Past Patterns of Global Atmospheric Transport" (held at Oracle, Arizona, USA from November 17-19, 1987) brought together atmospheric chemists, physicists, and meteorologists who study the origin and transport of modem-day mineral and biological aerosols with geologists and paleobotanists who study the sedimentary record of eolian and hydrologic processes along with modelers who study and conceptualize the processes influencing atmospheric transport at present and in the past. Presentations at the workshop provided a guide to our present knowledge of the entire spectrum of processes and phenomena important to the generation, transport, and deposition of eolian terrigenous material that ultimately becomes part of the geologic record and the modeling techniques that used to represent these processes. The presenta tions on the geologic record of eolian deposition documented our present understanding of the na~e and causes of climate change on time scales of the last glacial ages (tens of thousands of years) to time scales over which the arrangement of continents, mountains, and oceans has changed sub stantially (tens of millions of years). There has been a growing recognition of the importance of global climatic changes to the future well-being of humanity. In particular, the climatic response to human alterations to the earth's surface and chemical composition has led to concern over the agricultural, ecological, and societal impacts of such potential global changes.

Palaeoecology of Africa & of the Surrounding Islands & Antarctica

Palaeoecology of Africa & of the Surrounding Islands & Antarctica
Author: Eduard Meine van Zinderen Bakker
Publisher:
Total Pages: 240
Release: 1966
Genre: Paleobotany
ISBN:

Vol. 8 contains the proceedings of the International Council of Scientific Unions, Scientific Committee on Antarctic Research, Conference on Quaternary Studies held at ... Canberra ... 1972.

AETFAT bulletin

AETFAT bulletin
Author: Association pour l'etude taxonomique de la flora d'Afrique tropicale
Publisher:
Total Pages: 386
Release: 1986
Genre: Botany
ISBN: