Quartz concentration as an index of sediment mixing : hydraulic mine-tailings in the Sierra Nevada, California
Hydraulic gold mining delivered large volumes of sediment to northern California stream channels from 1853 to 1884. Distinctive quartz composition of this sediment allow development of a sediment mixing index for determination of tailings
concentrations in contemporaneous and reworked deposits. This index reveals patterns of sediment mixing in the Bear River, California over the last 100 years.
Social mix and the problematisation of social housing
Australia ; Community ; Discourse ; Equity ; Housing ; Housing policy ; New South Wales ; Poverty ; Social geography ; Social housing ; Social mix ; Sydney ; Urban renewal
This article analyses social mix and the problematisation of social housing through case studies of two Sydney social housing renewal projects: Telopea and Riverwood North. It identifies two distinct discourses of social exclusion within
this problematisation—culture of poverty discourse and equity discourse—that shape the implementation of social mix. These discourses reveal that implementing social mix is more complex than simply managing the cohabitation of residents in different tenures. Rather
, the practice of social mix is embedded within discourses about the nature and causes of social exclusion. These discourses, in their turn, inform the multiple and sometimes conflicting aspirations pursued through social mix policies.
Wp yw procesu mieszania sie wod podgrzanych na rozk ady temperatury w rzekach swobodnie p ynacych Effect of the process of mixing up heated waters on the temperature distribution in freely flowing rivers
from the proper determination of the parameters describing the process (longitudinal and lateral mixing coefficients), by the dye Rodamine E. The values of the lateral and longitudinal mixing coefficients were compared for several stretches
of the rivers. One saw that mixing processes take place slower with the decrease of the velocity gradients in the cross-section. (L'A).
Accelerator dating of a mixed assemblage of late Pleistocene insect fossils from the Lamb Spring site, Colorado
that what appeared to be an ecological mixing was probably a taphonomic problem, wherein full-glacial-age fossils were probably reworked into latest Wisconsin sediments.
Illite-smectite mixed layers in silicide shales and piggy-back deposits of the gorgoglione formation (Southern Apennines) : geological interferences
Formation) accumulated in piggy-back basins. In this context the clay mineralogy was used as a tool to study the emplacement of thrust sheets using a detailed powder X-ray diffraction studies of illite-smectite mixed layers clay minerals. - (NF)
On the mixed-layer climatology of the north and tropical Atlantic
Présentation et commentaire de cartes bimestrielles de l'épaisseur et de la température de la couche superficielle homogène (couche de mélange, mixed layer) sur l'Atlantique (Caraïbe et Golfe du Mexique inclus), entre 70 N et 20 S, pour les dix