THE NATURE AND EXTENT OF A STRATIGRAPHICAL BREAK IN THE CAMBRO-ORDOVICIAN LIMESTONES OF NORTHERN ANHUI,AND ITS BEARING UPON THE SYSTEMATIC CLASSIFICATJON OF THE CAMBRO-ORDOVICIAN STRATA
Ⅰ. INTRODUDTION The Name Sinian System("Sinische Formationsreihe")was firstemployed in a stratigraphic sense by Ferdinand von Richthofen whosegeographic and geologic explorations in China must for all time form the
Ⅰ. INTRODUDTION The Name Sinian System("Sinische Formationsreihe")was firstemployed in a stratigraphic sense by Ferdinand von Richthofen whosegeographic and geologic explorations in China must for all time form the
