Quaternary palaeoenvironments of pans in central South Africa : palynological and palaeontological evidence
Various palaeontological remains have been found in springs, sandy lunettes and floor deposits at pans in South Africa. Analysis of two pans in the Orange Free State provides a more coherent Quaternary palaeoenvironmental reconstruction than before
Trois notes de recherche. 1. Le recensement rénové français et l'étude des mobilités (J.-L. Pan Ke Shon). 2. Les flux migratoires interrégionaux en France depuis cinquante ans (B. Baccaïni). 3. La résidence secondaire en Espagne : profils
The Boteti palaeo-estuary in northern Botswana is located where the endoreic Boteti river, an overflow from the regional Okavango river system, enters the Makgadikgadi pans. The aims are to help identify precursor conditions for the origin
of microcrystalline silcrete–calcrete intergrade deposits while developing insight into pene-contemporaneous silica and calcite matrix formation. General precursor conditions require the presence of cyclical endoreic freshwater inflow into a saline pan. The pan should
be deep enough to sustain a permanent watertable under climatic conditions sufficient to cause carbonate fractionation within the groundwater. Freshwater inflow into a saline pan drives the geochemistry of the system (from freshwater to saline, from
neutral to high pH). The geochemistry is controlled by the periodicity of inflow relative to salinity levels of phreatic groundwater in the receptor saline pan.
Anacardiacea (W. Meijer). Apocynaceae (H. Huber). Asclepiadaceae (H. Huber). Avicenniaceae (H. N. and A. L. Moldenke). Begoniaceae (A. H. M. Jayasuriya). Burmanniaceae (L. H. Cramer). Campanulaceae (L. H. Cramer). Lobeliaceae (L. H. Cramer
). Nyctanthaceae (H. N. and A. L. Moldenke). Periplocaceae (H. Huber). Sphenocleaceae (L. H. Cramer). Symphoremaceae (H. N. and A. L. Moldenke). Verbenaceae (H. N. and A. L. Moldenke). Zingiberaceae (B. L. Burtt and R. M. Smith).
Soils of presumed middle to late Quaternary age were analyzed to determine if D/L ratios (D to L-form) of amine acids and/or sand clast weathering could be used for relative age assignment. In the light of the results, the glacial model of Li
and Pan (1989) showing three glaciations in the Dalijia Shan will have to be reexamined.
BIOPRESS (‘Linking Pan-European Land Cover Change to Pressures on Biodiversity’), a European Commission funded ‘Global Monitoring for Environment and Security’ project, produced land cover change information (1950—2000) for Europe from aerial
Ebenaceae (A. J. G. H. Kostermans) Gentianaceae (L. H. Cramer). Gesneriaceae (W. L. Theobald and D. A. Grupe). Lamiaceae (L. H. Cranier). Lecythidaceae (W. Machae and F. R. Fosberg), Martyniaceae (W. L. Theobald and D. A. Grupe). Menyanthceae (L. H
. Cramer). Moraceae (E. J. H. Corner). Pandanaceae (B. C. Stone). Pedaliaceae (W. I. Theold and D. A. Grupe). Rosaceae (D. D. Tirvengadum). Sabiaceae (C. F. van Bensekom). Scrophulariaceae (L. H. Cramer). Sonneratiaceae (W. Macnae and F. R. Fosberg
). Symplocaceae (H. P. Nooteboom). Umbelliferae (J. L. Krahulik and W. L. Theobald).
Berg (L. S.) ; Biobibliographie ; Biographie ; Blodget (L.) ; Capot-Rey (R.) ; Cressey (G. B.) ; Davis (W. M.) ; Fabricius (J. A.) ; Franz (J. M.) ; Glareanus (H.) ; Grigor'ev (A.A.) ; Guyot (A. H.) ; Géographes ; Histoire de la géographie
; Jobberns (G.) ; Lencewicz (S.) ; Mitchell (T. L.) ; Mueller (F. J. H. von) ; Ormsby (H.) ; Ritter (Carl) ; Roxby (P. M.) ; Schmitthenner (H.) ; Siècle XV-XX ; Stoffler (J.) ; Vujevic (P.)
Notices concernant 20 géographes: L. S. Berg (1876-1950), L. Blodget (1823-1901), R. Capot-Rey (1897-1977), G. B. Gressey (1896-1963), W. M. Davis (1850-1934), J. A. Fabricius (1668-1736), J. M. Franz (1700-1761), H. Glareanus (1488-1563
), A. A. Grigoryev (1883-1968), A. H. Guyot (1807-1884), G. Jobberns (1895-1974), S. Lencewicz (1899-1944), T. L. Mitchell (1792-1855), F. J. H. von Mueller (1825-1896), H. Ormsby (1877-1973), C. Ritter (1779-1859), P. M. Roxby (1880-1947), H. Schmitthenner (1887