The Alamo was built by Spanish settlers in the mid-1700s using Austin Chalk limestone from a quarry near present day Brackenridge Park. The Austin Chalk is known for its oil reserves in South Texas, ...

Jordanian workers put coloured chalk through a machine in the factory in Karak, south of the capital Amman — Khalil MAZRAAWI Long before whiteboards, beamers and laptops entered modern school ...

Artist and University of Kansas graduate Megh Knappenberger created six paintings of the university’s mascot, the Jayhawk, even incorporating rock chalk (limestone) in it. She was able to get ...

With crude oil trading at $46 per barrel, exploration and production companies are looking to the Austin Chalk geological layer as a cost-effective alternative. Crude oil is trading in the ...

For the aspirants of Civil Services IAS Prelims Exam, here, we have provided the Multiple Choices Questions which are developed from the content of Goh Cheng Leong’s Physical and Human Geography, one ...

The Jetmore Chalk Member of the Greenhorn Limestone is a Late Cretaceous rock unit deposited under the Western Interior Seaway in North America. We here report an assemblage of vertebrate fossils ...

The massive chalk of Europe lies below the English Channel, under much of northern France, under bits of Germany and Scandinavia, under the Limburg Province of the Netherlands, and—from Erith Reach to ...

Long before whiteboards, beamers and laptops entered modern school classrooms, teachers relied on the humble, dusty, sometimes screechy blackboard chalk -- a material that has created a Jordanian ...

Chalk, a white, soft limestone, was formed aeons ago when the shells of tiny marine creatures were compressed on the sea floor. Jordanian workers put coloured chalk ...

Chemical engineer Salah Aloqbi remembers sitting on a bus in Amman in 1995 when he hit on the idea that would lead him to create his company. More than two decades later it boasts 150 staff, with ...