Devonian strata in Montana

JUVENILE GASTROPODS FROM THE UPPER DEVONIAN CEPHALOPOD BEDS AND ADJACENT STRATA OF CENTRAL IRAN

Microgastropod fauna from the Upper Devonian Cephalopod Bed and overlying Lower Tournaisian strata of the original reference section of the Shishtu Formation have been examined. Twenty genera and one unknown genus have been identified. The original aragonite shells have been replaced either by pyrite or fluorapatite

juvenile gastropods from the upper devonian cephalopod beds and adjacent strata of central iran

microgastropod fauna from the upper devonian cephalopod bed and overlying lower tournaisian strata of the original reference section of the shishtu formation have been examined. twenty genera and one unknown genus have been identified. the original aragonite shells have been replaced either by pyrite or fluorapatite

Classify strata

We assume there is a slight difference in the average value of the gene expression for a group of genes between two strata/time periods. There is no prior knowledge on which genes where the gene expression differs between the two strata. We test out the power of a large number of test statistics in order to identify whether the observed difference between the averages is significant. Secondly, ...

Deadly radon in montana?

Noting a negative correlation between average radon levels and lung cancer mortality in Montana counties, Hart (2011) “questions the notion that radon is deadly in Montana.” Results from a much larger ecological study of the correlation between county radon levels and lung cancer mortality across the whole United States were published in the 1990s (Cohen 1990, 1995). Like Hart, Cohen found an i...

Deadly radon in montana?