van eyck formation造句

• The Van Eyck Formation has a lineated facies and a secondary-crater facies.
• These craters have been included in a separate facies of the Van Eyck Formation because of their regional stratigraphic significance.
• The plains also embay the Caloris Formation and account in particular for the skeletal map pattern of the Van Eyck Formation.
• Following the terminology developed by McCauley and others ( 1981 ) we have assigned them to the Van Eyck Formation, Secondary-Crater Facies.
• The plains unit in these areas has generally been infilled with the Van Eyck Formation, although it may, in part, be smooth plains material.
• The Van Eyck Formation, which is the most distinctive of the circum-Caloris stratigraphic units, was called the Caloris lineated terrain by Trask and Guest.
• No material similar to either the lineated or the secondary-crater facies of the Van Eyck Formation, the most distinctive and distant unit of the Caloris Group ( McCauley and others, 1981 ), can be unambiguously identified in the Borealis region.
• In the Shakespeare quadrangle, only a lineated facies of the Van Eyck Formation is recognized, whereas in the Tolstoj quadrangle to the south, both it and a secondary crater facies are mapped ( Schaber and McCauley, 1980; McCauley and others, 1981 ).