Browsing Geological Sciences by Title
Now showing items 79-98 of 286
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The foraminiferal signature of recent Gulf of Mexico hurricanes
(East Carolina University, 2012)Down-core activities of ⁷Be, ²³⁴Th, and ²¹⁰Pb, as well as X-radiography, have indicated the existence of sediments deposited by hurricanes Ivan (2004), Katrina (2005), and Rita (2005) on the continental margin west of the ... -
Geochemistry and Genesis of Late Paleoproterozoic Banded Iron Formations and Metamorphosed Chemical Precipitates Spatially Associated with Pb-Zn Broken Hill-type Mineralization near the Broken Hill Deposit, Curnamona Province, Australia
(East Carolina University, 2014)Banded and massive iron formations (IFs) and garnet- and gahnite-quartz rocks are spatially associated with the giant, late Paleoproterozoic, Pb-Zn-Ag Broken Hill sulfide deposit and hundreds of minor Broken Hill-type ... -
GEOLOGY AND ORIGIN OF SAND RIDGES IN A BACK-BARRIER ESTUARY, PAMLICO SOUND, NORTH CAROLINA
(East Carolina University, 2018-06-06)The Outer Banks of North Carolina have undergone significant geomorphic change, exhibiting varying degrees of barrier island continuity during the late Holocene. These changes affect the environmental conditions (salinity, ... -
Geology of the Castle Hayne Limestone in the Onslow Quarry, Richlands, NC
(East Carolina University, 2012)The Eocene age Castle Hayne Limestone Formation on the coastal plain of North Carolina is found throughout Onslow County and is mined at the Onslow quarry south of Richlands. This study characterizes the geology of the ... -
Geometry and construction history of a complex intrusive center in the shallow crust, Mount Pennell, Henry Mountains, Utah
(East Carolina University, 2014)Large igneous intrusions grow from incremental emplacement of relatively small batches of magma. The Henry Mountains have been the subject of investigation because multiple, well-exposed intrusive centers are present on ... -
Geometry and Construction History of the Copper Ridge Laccolith, Mount Ellen, Henry Mountains, Utah
(East Carolina University, 2015)The Copper Ridge laccolith is an asymmetric tongue-shaped intrusion located on the southeastern margin of Mount Ellen in the Henry Mountains, Utah. The late-Oligocene to early-Miocene igneous rocks have no syn- or ... -
Geometry and Construction of Upper Crustal Intrusions; Sawtooth Ridge, Henry Mountains, Southern Utah.
(East Carolina University, 8/5/2020)The plumbing systems of volcanos are commonly constructed by interconnected, upper crustal sheet intrusions (i.e. dikes and sills). Active systems and the processes that contribute to their construction are difficult to ...