Observations on the Geology of the United States of AmericaW. Fritsch, 1966 - 127 páginas |
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Observations on the Geology of the United States of America William Maclure Vista de fragmentos - 1962 |
Términos y frases comunes
aggregates Alleghany Alleghany mountains alluvial alluvial formation banks basin beds boundary cement chrystalline chrystals classes of rocks climate coal Connecticut river consists contain covered decompose decomposition Delaware depositions distance earth edge Europe extensive favourable feldspar geological gneiss granite grey wacke slate gypsum heat horizontal hornblende hornblende rocks Hudson Hudson river iron island Lake Champlain Lake Ontario land lime limestone luvial manure masses mation mica mica slate miles Mississippi moisture moun navigation North Carolina north-west occupies old red sandstone oldest red sandstone particles perhaps places primitive formation primitive rocks probable produce pyrites quantity quartz range of mountains rich and fertile ridge rivers sand and gravel schistose secondary limestone secondary rocks sition situation south-east south-west Stony mountains strata stratification substances surface tains thin tion tive tolerable soil transition and secondary transition class transition formation vallies vegetable mould washed whole Yadkin river