gunflint

n.

（燧发枪的）引火燧石；

A Transmission Electron Microscopy Study of Silica and
Microorganisms from the Gunflint Chert: These structurally preserved Precambrian fossils from Ontario are the most ancient organisms...
Significance of the Gunflint (Precambrian) Microflora
Sm-Nd isochron-age and provenance of the argillites of the Gunflint Iron Formation in Ontario, Canada
The age of the Gunflint Formation, Ontario, Canada: single zircon U–Pb...
The Gunflint microbiota ☆
Petrology of the Low-Grade Rocks of the Gunflint Iron-Formation, Ontario-Minnesota
Taphonomy of very ancient microfossils from the ∼3400 Ma Strelley Pool Formation and ∼1900 Ma Gunflint Formation: New insights u...
Stable isotope geochemistry of cherts and carbonates from the 2.0 Ga Gunflint Iron Formation: implications for the depositional sett...
Mineralogy and Petrology of the Gunflint Iron Formation, Minnesota-Ontario: Correlation of Compositional and Assemblage Variations a...