Vol. 302, Issue 9, 2002 | Published by American Journal of Science

Science Paper
Mechanical Links Between Erosion and Metamorphism in Nanga Parbat, Pakistan Himalaya
P. O. KoonsP. K. ZeitlerC. P. ChamberlainD. CrawA. S. Meltzer
The mechanics and petrological signature of a collisional mountain belt can be significantly influenced by topographic and erosional effects at the scale of large river gorges. The geomorphic influence on...
Science Paper
The Low-Temperature Geochemical Cycle of Iron: From Continental Fluxes to Marine Sediment Deposition
S. W. PoultonR. Raiswell
Suspended sediments from 34 major rivers (geographically widespread) and 36 glacial meltwater streams have been examined for their variations in different operationally-defined iron fractions; FeHR (iron oxides soluble in dithionite),...
Science Paper
Intermediate-P/T Type Archean Metamorphism of the Isua Supracrustal Belt: Implications for Secular Change of Geothermal Gradients at Subduction Zones and for Archean Plate Tectonics
Tsuyoshi KomiyaMamoru HayashiShigenori MaruyamaHisayoshi Yurimoto
The Isua supracrustal belt (ISB) rocks are dated at about 3.8 Ga and constitute the oldest accretionary complex in the world. Petrochemical and geothermobarometric studies of over 1,500 rock samples...