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Author: Robert Minssen Kleinpell
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 372
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Book Description
Author: Robert Minssen Kleinpell
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 372
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Book Description
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 64
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Author: Roberta K. Smith
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 42
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Book Description
While several papers exist on the small scale spatial distribution of living foraminifera, almost no work exists on the small scale spatial distribution of fossils. The present study took 24 (5 ml) replicates 10 cm apart along one bed of the Monterey Formation in California.The mean density for all replicates is 6084.96 with a standard deviation of 8776.95. Both inspection and a cluster analysis of the data indicate replicates 20-24 have a much higher density and different rank order of abundance than replicates 1-19. The mean density for the total of all species in replicates 1-19 is 2387.47 with a standard deviation of 1175.58. For replicates 20-24 the mean density is 20135.40 with a standard deviation of 11181.40. The spatial variability is so great that four replicates (more than commonly taken) would only allow us to be 95% confident that we are within 50% of the true mean. Because age determination is based on presence of particular taxa rather than on densities, stratigraphic assignment would still be possible.The three species dominating the 1-19 group make up from 86% to 99% of the fauna. The three species dominating the 20-24 group make up from 77% to 85% of the fauna. Two of these are also dominant in the 1-19 group, but the most dominant species in the 20-24 group constitutes only
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 446
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Book Description
Author: Samuel Y. Johnson
Publisher:
ISBN:
Category : Geology, Stratigraphic
Languages : en
Pages : 40
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Author: Eldridge M. Moores
Publisher: Geological Society of America
ISBN: 0813723388
Category : Science
Languages : en
Pages : 507
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Author: Judith Terry Smith
Publisher:
ISBN:
Category : Paleontology
Languages : en
Pages : 244
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Book Description
Thirty-nine taxa, many of them index species, are described and illustrated; their biostratigraphic and chronostratigraphic significance are related to tectnostratigraphic settings.
Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 260
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Author:
Publisher:
ISBN:
Category : Continental shelf
Languages : en
Pages : 432
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Author: Patricia Alison McCrory
Publisher:
ISBN:
Category : Diatoms, Fossil
Languages : en
Pages : 68
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Book Description
Chapters J and K are issued as a single volume and are not availabe separately.
