limestone clay
101Portland cement — is the most common type of cement in general usage in many parts of the world, as it is a basic ingredient of concrete, mortar, stucco and most non specialty grout. It is a fine powder produced by Portland cement clinker (more than 90%), a… …
102A151 road — UK road routebox road= A151 length mi= length km= direction= start= Colsterworth destinations= end= Holbeach construction date= completion date= junctions= The A151 road is relatively minor part of the British road system. It lies entirely in the …
103chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… …
104Chardonnay — This article is about the grape variety. For the village in France, see Chardonnay, Saône et Loire. Moreau Blanc redirects here. For another French wine grape that is also known as Moreau Blanc, see Gouais blanc. Gentil Blanc redirects here. For… …
105North York Moors — Protected Area The North York Moors from space Country …
106Geology of Great Britain — The Geology of Great Britain is hugely varied and complex, and gives rise to the wide variety of landscapes found across the islands. This varied geology has also meant that the island has been an important source for the formation of many… …
107Pottsville Formation — Stratigraphic range: Pennsylvanian Typical Pottsville Formation at Worlds End State Park, Sullivan County, Pennsylvania Type sedimentary …
108environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
109Geology of the Capitol Reef area — [ Waterpocket Fold is the major geographic feature in the area of the park. This view is from above Capitol Reef Scenic Drive looking back at the west face of the broken and eroded fold.] The exposed geology of the Capitol Reef area presents a… …
110Aegean civilizations — The Bronze Age civilizations that arose and flourished с 3000–1000 BC in the region bordering the Aegean Sea. They included Crete, the Cyclades, the Greek mainland south from Thessaly, including the Peloponnese, and Macedonia, Thrace, and western …
