Category Archives: Landforms

Are the deserts getting greener?

Posted on July 18, 2009 by Rashid Faridi

It has been assumed that global warming would cause an expansion of the world’s deserts, but now some scientists are predicting a contrary scenario in which water and life slowly reclaim these arid places.The evidence is limited and definitive conclusions … Continue reading →

Posted in Ecosystem, Landforms | Leave a comment

Mesa and butte

Posted on October 30, 2008 by Rashid Faridi

Junction Butte in Canyon-lands National Park, Utah. Part of the Colorado Plateau, the landscape of sedimentary sandstone in this area was eroded into countless canyons, mesas, and buttes by the Colorado River and its tributaries Spanish explorers in the mid-sixteenth … Continue reading →

Posted in Landforms | 1 Comment

Delta

Posted on October 19, 2008 by Rashid Faridi

Deltas have long played an important role in human history. These fertile areas where rivers flow into large bodies of water have served as fishing, farming, and living sites. Of the great deltas around the world, perhaps none has had … Continue reading →

Posted in Environment, Landforms, water | 3 Comments

Magmatic processes and igneous intrusions

Posted on April 26, 2008 by Rashid Faridi

Magma What is magma? Properties of magmas Chemical composition What is magma? Magma is hot molten mobile rock. Igneous rocks form when magma cools and solidifies. Magmas come out of active volcanoes as lavas. The most abundant magma is … Continue reading →