hematitic造句

• Hematitic banded-iron formation specimen from Michigan's Upper Peninsula; Scale bar is 5.0 mm
• Some hematitic jasperoids may be sourced from metamorphosed and altered jaspillite, and are located above areas identified as submarine basalt vents.
• Hematitic alteration of the sediment that resulted from baking by the lavas is minimal, amounting to a few centimeters or less.
• The dikes intrude through Early Proterozoic sedimentary hematitic veins, the Bear River dikes are interpreted to have formed during a single magmatic phase.
• Hematitic jasperoid is only found within the Glengarry basin, Western Australia, although it probably represents an end-member state of a variety of alteration and metasomatism styles found elsewhere.
• The site exposes bedded hematitic iron ore ( red ochre ) in Triassic Dolomitic Conglomerates which was deposited underwater as a layered mass of iron oxide pellets of various types, probably in an ephemeral lake or pond fed by hot springs when the Mendip area was occupied by a desert environment some 220 million years ago during late Triassic times.