Vegetation Surveys: A 12 Year History, Navajo Mine

A Brief History of Mine Ventilation

Observations of the movements of air in underground passages have a long and fascinating history. Between 4000 and 1200 BC, European miners dug tunnels into chalk deposits searching for flint. Archaeological investigations at Grimes Graves in the south of England have shown that these early flint miners built brushwood fires at the working faces—presumably to weaken the rock. However, those Neo...

Tribe at a Crossroads: The Navajo Nation Purchases a Coal Mine

A 2000 year history of vegetation and landscape change in Hawke's Bay, North Island, New Zealand

Sediment cores from four lakes in the Tutira and Putere districts of Hawke's Bay, North Island, New Zealand, are analysed for the remains of pollen, charcoal, tephra and erosion pulses to reconstruct a 2000 year history of vegetation and landscape change. The Hawke's Bay region is disturbed fi'equently by earthquakes, volcanic eruptions, cyclonic storms, droughts and fire. This thesis determine...

Once Upon a Mine: The Legacy of Uranium on the Navajo Nation

A 17 000-year history of Andean climate and vegetation change from Laguna de Chochos, Peru

The manifestation of major climatic events such as the timing of deglaciation and whether, or not, the Younger Dryas affected Andean systems has garnered considerable recent attention. Even the Holocene is rapidly emerging as a time of considerable interest in Neotropical palaeoclimatology and palaeoecology. The Holocene of the Neotropics is now revealed as a time of some temperature change wit...