Zobrazeno 1 - 2
of 2
pro vyhledávání: '"R. Cleland Wallace"'
Publikováno v:
New Zealand Journal of Geology and Geophysics. 47:549-565
The last 100 000 yr record of volcaniclastic sedimentation in the Rotoaira Basin reflects the critical role played by tectonic and eruptive activity that led to: (1) the catastrophic emplacement of Te Whaiau Formation (60–55 ka); (2) major episodes
Autor:
Paul L. Hoek, Douglas E. Ryan, James H. Johnston, John D. Collen, R. Cleland Wallace, J. Holzbecher, Roger D. Reeves, Robert R. Brooks
Publikováno v:
Geology. 13:738
Three types of spheroids are found in the iridium-rich shale layer at the Cretaceous/Tertiary boundary at Woodside Creek, South Island, New Zealand. Two of the types (A and B) consist mainly of microcrystalline goethite, whereas the third type (F) co