 | Sir Charles Lyell - Geology - 1833 - 562 pages
...inclosures. SERPENTINE. A rock usually containing much magnesian earth, for the most part unstratified, but sometimes appearing to be an altered or metamorphic...of some serpents. SHALE. A provincial term, adopted in geological science, to express an indurated slaty clay. Etym., German schalen, to peal, to split.... | |
 | Sir Charles Lyell - Geology - 1833 - 570 pages
...inclosures. SERPENTINE. A rock usually containing much magnesian earth, for the most part unstratified, but sometimes appearing to be an altered or metamorphic...of some serpents. SHALE. A provincial term, adopted in geological science, to express an indurated slaty clay. Etym., German schalen, to peal, to split.... | |
 | Sir Charles Lyell - Geology - 1834 - 420 pages
...inclosures. SERPENTINE. A rock usually containing much magnesian earth, for the most part unstratified, but sometimes appearing to be an altered or metamorphic...to express an indurated slaty clay. Etym., German schalm, to peal, to split. SHELL MARL. A deposit of clay, peat, and other substances mixed with shells,... | |
 | sir Charles Lyell (bart.) - 1835 - 440 pages
...inclosures. SERPENTINE. A rock usually containing much magnesian earth, for the most part unstratjned, but sometimes appearing to be an altered or metamorphic...an indurated slaty clay. Etym., German schalen, to peel, to split. SHELL MARL. A deposit of clay, peat, and other substances mixed with shells, which... | |
 | Virginia Geological Survey - Geology - 1836 - 552 pages
...mineral. Serpentine. — A rock usually containing much magnesian earth, for the most part unstratified, but sometimes appearing to be an altered or metamorphic...by geologists to express an indurated slaty clay. Shell Marl. — A deposite of clay, peat, and other substances mixed with shells, which collects at... | |
 | Geological Survey of Pennsylvania - Geology - 1836 - 686 pages
...from another series below them, called primary, and from a third series above them called tertiary. Shale. A. provincial term, adopted by geologists,...an indurated slaty clay. Etym. German schalen, to peel, to split. Shifigle. The loose and completely water-worn gravel on the sea shore. Silex or Silica.... | |
 | geologocal survey of pennsylvania - Geology - 1838 - 446 pages
...another series below them, willed primary, and from a third series above them called tertiary. Skalr.. A provincial term, adopted by geologists, to express...an indurated slaty clay. Etym. German schalen, to peel, to split. Shingle. The loose and completely water-worn gravel on the seashore. Klex or Silica.... | |
 | Geological Survey of Pennsylvania, Pennsylvania. State Geologist (1836-1841) - Geology - 1838 - 108 pages
...from another series below them, called primary, and from a third series above them called tertiary. Shale. A. provincial term, adopted by geologists, to express an indurated slaty clay. Etym. German achalen, to peel, to split. Shingle. The loose and completely water-worn gravel on the seashore. Kili:,-... | |
 | George Roberts - 1839 - 208 pages
...SERTULARIA (sertum, a garland) ; a genus of arborescent corals. SHALE (German, schalen, to peel, to split) ; a provincial term, adopted by geologists, to express an indurated slaty clay. There is the coal shale. SHELL MARL ; a deposit of clay, peat, and other substances mixed with shells,... | |
 | John Lee Comstock - Geology - 1847 - 434 pages
...inclosures. SERPENTINE. A rock usually containing much magnesian earth, for the most part unstratified, but sometimes appearing to be an altered or metamorphic...is derived from frequently presenting contrasts of color, like the skin of some serpents. SHALE. A provincial term, adopted by geologists, to express... | |
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A rock usually containing much magnesian earth, for the most part unstratified, but sometimes appearing to be an altered or metamorphic stratified rock. Its name is derived from frequently presenting contrasts of colour, like the skin of some serpents.... 
