Geology and paleoecology of Cretaceous rocks in northern Kaipara, New Zealand 

Evans, R. B. 

1985 

 

 

Article in journal 

Cretaceous rocks exposed in northern Kaipara Harbour, Northland, consist of well-bedded mid and outer fan flysch (Late Cretaceous: Arowhanan-Piripauan) separated by thinly bedded limestones and claystones from Late Cretaceous (early Haumurian) fan and slope deposits, which are in turn succeeded by massive Late Cretaceous - Early Paleocene (late Haumurian-Teurian) claystones. Fossil faunas indicate deposition below the upper slope and shelf, from which fossiliferous concretions were derived and mixed by contemporaneous reworking. The sediments were derived from a meta-igneous and granitic source, with very minor contributions from submarine volcanism. Greywacke-type detritus is almost absent. 

 

Article Subject Terms: Cretaceous; sedimentary rocks paleoecology; Biogeophysical; O 3000 Geological Oceanography; sedimentology; stratigraphy; PSE, New Zealand, Kaipara Marine Q2 02261 General