Population change in the upper Braldu Valley, Baltistan, 1900-1990: all is not as it seems
Demographic change ; Demographic structure ; Depopulation ; Himalaya ; Infant mortality ; Karokoram ; Local economy ; Mountain ; Pakistan ; Valley ; Village
Due mainly to high child mortality, population in the upper Braldu valley of the Karakoram range in northern Pakistan declined between 1900 and 1990. This trend is counter to the growth elsewhere in the Himalayan region. - (DWG)
AMS radiocarbon age of the Upper Mississippi Valley Roxana silt
Accelerator mass spectrometer radiocarbon ages of the Roxana Silt (Loess) along the Upper Mississippi Valley of Wisconsin and Minnesota indicate that loess sedimentation of the Roxana Silt occurred between about 55,000 and 27,000 14C yr B.P
. The bracketing ages for the Upper Mississippi Valley Roxana Silt indicate that the Mississippi River valley was receiving outwash sedimentation between 55,000 and 27,000 14C yr B.P.
A mid-Holocene alluvial deposit beneath blanket peat in the upper Liffey Valley, County Wicklow, Ireland
This paper describes a recently exposed cross section of a small valley buried beneath blanket peat on the upper slopes of the Liffey valley in the Wicklow Mountains, eastern Ireland, and examines its significance to the understanding of early
The fluvial factor in the evolution of alpine valleys and of ice-marginal topography in Vorarlberg (W-Austria) during the Upper Pleistocene and Holocene
Austria ; Fluvial processes ; Fluvial terrace ; Geochronology ; Geomorphogenesis ; Glacial features ; Glaciation ; Mountain ; Palaeoclimatology ; Palaeogeography ; Quaternary ; Snow line ; Valley ; Vorarlberg
and postglacial development of valley systems. The morphology of mixed-type valleys is highly persistent, as it had developed before and was maintained during the Upper Pleistocene. The topographic position of these valleys and their fills can be used
This paper illustrates the significant role of fluvial processes through time, in a key sector of the northern Alps. Emphasis is put on the interaction between fluvial and glacial processes during the Upper Pleistocene and on the related glacial
Evolution of an Alpine over-deepened valley (Upper Enns Valley, Austria) within the context of geomorphic and tectonic expressions
Austria ; Conglomerate ; Drainage network ; Geomorphogenesis ; Glaciation ; Neotectonics ; Quaternary ; Sediment transport ; Styria ; Tectonics ; Valley ; Vertical movement
The topography of the Upper Enns Valley results from both tectonic and erosive processes. In this paper, the AA. pay special attention to the importance of glacial and fluvial carving and the features of the present-day morphology; they outline
briefly the sedimentary pattern of the Ramsau Conglomerate. Finally, they present a model combining valley formation in relation with tectonic forcing and glacially induced overdeepening.
Fluvial chronology and valley floor evolution of the upper Bowmont valley, Borders Region, Scotland
This paper presents data from a number of sources (aerial photographic interpretation, field mapping, cartographic, radiocarbon and palynological dating), in order to establish limits to the ages of valley floor terraces on one such upland stream
Responses of floods to Holocene climatic change in the Upper Mississippi Valley
Dimensions of Holocene relict channels and sedimentological characteristics of point bars associated with these relict channels were used to reconstruct a Holocene history of long-term changes in magnitudes of 1.58 yr floods in Upper Mississippi
Valley watersheds of southwestern Wisconsin. The reconstructed record of floods shows relatively large and persistent (nonrandom) departures from contemporary long-term average flood magnitudes. The flood history indicates climatic changes
The character and age structure of valley fills in upper Wolumla Creek, south coast, New South Wales, Australia
Australia ; C 14 dating ; Carrying capacity ; Floodplain ; Gully erosion ; Human impact ; New South Wales ; Sediment filling ; Valley
This paper describes the nature of valley fill deposits at the base of the escarpement in part of Bega catchment. Extensive valley fills, up to 12 m deep but no greater than 300 m wide, have formed in the upper reaches of Wolumla Creek, a north
-south aligned subcatchment. The sedimentary character, nature of depositional processes, and age structure of the valley fill deposits are analysed.
This paper presents the state of knowledge on the evolution of river valleys in the Upper Quaternary. It is followed by full index of localisations, where dated Vistulian and Holocene sediments were found. The transformation of river valleys
The distributed sediment budget model and watershed management in the Paleozoic Plateau of the Upper Midwestern United States
The distributed sediment budget model describes the complex sediment storage fluxes of three basin zones (tributaries, upper main valley and lower main valley) in the Paleozoic Plateau of the Midwest and is therefore useful for purposes of watershed
Morphogenetic problems of the upper Huang He drainage basin
of the Cenozoic tectonic evolution of the Tibetan Plateau. The upper Huang He drainage pattern is explained by an antecedent development of separate valley units.
The combination of meanders, deep gorges, and transverse cuttings is considered as the main geomorphic feature of the upper Huang He. The belonging landforms reveal remnants of former landsurfaces which appear as plateau flats, summit levels
, and rock-cut valley terraces. They are interpreted as relics of planation surfaces, pediments, and valley bottoms. The most widespread remnants are the plateau flats between 4,200 and 4,600 m. The planation levels are connected with the stages
Floodplain sedimentation and sensitivity : summer 1993 flood, upper Mississippi River valley
in the upper Mississippi River valley to the summer 1993 flood by comparing the response of the floodplain in the study reach to that of the floodplain reaches further downriver.
This paper elaborates on the pattern of overbank sedimentation associated with the point failure of artificial levees during the summer 1993 flood in the upper Mississippi River basin. These failures inundated clearly delineated, 16 to 179 km2