Occurrence of Structurally Preserved Plants in Pre-Cambrian Rocks of the Canadian Shield

Organic matter and the origin of the Biwabik iron-bearing formation of the Mesabi range

John Walter Gruner · Economic Geology · 1922 · 94 citations

Natural Sciences, Earth Sciences, Geology +15

NEW EVIDENCE OF THE ORIGIN OF PRE-CAMBRIAN CARBON

Kalervo Rankama · Geological Society of America Bulletin · 1948 · 70 citations

Natural Sciences, Earth Sciences, Geology +9

Algae, Believed to be Archean

John W. Gruner · The Journal of Geology · 1923 · 36 citations

Life Sciences, Botany, Marine Biology +10

Discovery of Life in the Archean

John W. Gruner · The Journal of Geology · 1925 · 22 citations

Humanities, Archaeology, Biology +10

Helium Age Measurement. I. Preliminary Magnetite Index

P. M. HURLEY, C. Goodman · Geological Society of America Bulletin · 1943 · 22 citations

Natural Sciences, Physics, Magnetic Materials +7