In the Niagaran (Silurian), we saw a general trend of increasing dolomitization shelfward, with limestone predominant in more basinward positions. One of our major findings was that these facies types ...

Dr. Kaczmarek is professor of geology and head of the Carbonate Petrology & Characterization Laboratory at Western Michigan University. He is a sedimentary petrologist with a research focus on ...

In zones of focused vertical flow, hydrothermal brines produce reservoirs of restricted areal extent by dolomitization, solution of carbonates, silicification, and brecciation (Fig. 1).