| Autor: |
C. M. Vooren, V. M. T. Garcia, N. M. Gianuca, Ulrich Seeliger, J. P. Castello, Clarisse Odebrecht, M. Haimovici |
| Rok vydání: |
1997 |
| Předmět: |
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| Zdroj: |
Subtropical Convergence Environments ISBN: 9783642644184 |
| Popis: |
The coastal dunes of southern Brazil are remarkably similar because Holocene sea-level changes have influenced their genesis (Pfadenhauer 1980; Schwarzbold and Schafer 1984), resulting in the sequential formation of depressions and dune ridges parallel to the shore. The most recent transgression-regression events moulded the 300–1000 m wide foredunes, with seasonally flooded freshwater marshes immediately interior of them. The flat marine terrace supplies a considerable amount of fine quartz sand to the beach (Pfadenhauer 1980), and the sandy substrate of windblown foredunes contains a high proportion of shell fragments but little organic matter (Cordazzo and Seeliger 1987). Since the tidal ranges are low ( |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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