The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 1997 |
From inside the book
Results 1-3 of 11
Page 940
... Igneous rocks . Clarke estimated that 95 percent of crustal rocks are of igneous origin ( formed from molten silicate masses , or magmas ) . Sedimentary rocks occur as a thin veneer on an igneous or metamorphic basement , except where ...
... Igneous rocks . Clarke estimated that 95 percent of crustal rocks are of igneous origin ( formed from molten silicate masses , or magmas ) . Sedimentary rocks occur as a thin veneer on an igneous or metamorphic basement , except where ...
Page 941
... igneous rock analy- ses from the oceanic islands is notably lower in silica and alkalies , and higher in magnesium ... rocks consist predominantly of two great types , granitic and basaltic . The former essentially are confined to the ...
... igneous rock analy- ses from the oceanic islands is notably lower in silica and alkalies , and higher in magnesium ... rocks consist predominantly of two great types , granitic and basaltic . The former essentially are confined to the ...
Page 950
... igneous and sedimentary processes . In general , metamor- phism promotes a more uniform distribution of the ele- ments and tends to erase compositional differences within large rock masses . Unlimited metamorphism would result in a ...
... igneous and sedimentary processes . In general , metamor- phism promotes a more uniform distribution of the ele- ments and tends to erase compositional differences within large rock masses . Unlimited metamorphism would result in a ...
Common terms and phrases
19th century adult America anemia antibodies antigens Asia behaviour bill birds blood group bodhisattva body Bolivia bone Brazil Brazilian breeding broadcasting bryophytes Buddha Buddhist building called Caprimulgiformes centimetres central centre China clotting colonial colour countries cuckoos disease display early eggs electrons Eocene falconiforms Family feathers feeding feet female forest fossil frequency genera genus gruiform hemoglobin important incubation Indian insects islands known legs light Mahāyāna major male marrow metres molt monks nest normal North oilbird owls pair Pāli parrots passerines pattern pelecaniforms penguins percent perch period Piciformes pigeons plasma platelets plumage political population produced programs protein radio red cells region river São Paulo scanning sexes short signal South species sporangium structure Suborder surface tail television Theravada tion tissue toes tradition trees tropical tube usually Vajrayāna varies wings woodpeckers World young