Temperature effects on the acidity of remote alpine lakes

Article Abstract:

There was a rise in pH and the concentration of sulphate, silica and base cations in 57 remote alpine lakes between 1985 and 1995. In contrast, concentrations of inorganic nitrogen declined. It is likely that these changes were caused by a rise in air temperature of around 1 deg C since 1985, leading to enhanced weathering and a rise in biological activity. Climate warming can have an impact on water chemistry in remote alpine lakes, and can even cancel out the possible effects of acid deposition.

Environmental aspects, Mountains, Lake ecology, Alpine regions

---

Asynchronous deposition of ice-rafted layers in the Nordic seas and North Atlantic Ocean

Article Abstract:

There is a lack of widespread systematic correlations between ice-rafted debris layers in sediment from the Nordic seas, and between Nordic and North Atlantic Heinrich layers. This indicates that unstable behaviour was not exhibited by the full-glacial Nordic ice sheets, coincident with iceberg discharge from the Laurentide Ice Sheet. The dynamics of quaternary ice sheets around the Nordic seas were thus different from the outlet glacier draining the Hudson Bay basin.

Ice sheets

---

Similar abstracts:

• Abstracts: Influence of motion signals on the perceived position of spatial pattern. Infants listen for more phonetic detail in speech perception than in word-learning tasks
• Abstracts: Number of censuses required for demographic estimation of effective population size. Direct perturbation analysis for better conservation
• Abstracts: The influence of nutritional status on the feeding behaviour of the field slug, Deroceras reticulatum (Muller)
• Abstracts: Effect of mechanical interactions on the scaling of fracture length and aperture. Structural basis for the fracture toughness of the shell of the conch Strombus gigas
• Abstracts: The pelvic fin and girdle of Panderichthys and the origin of tetrapod locomotion. Poetry in motion: the lovely locomotion of dolphins

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.