%0 Book %D 2015 %T Cape Anne: Its physical and environmental geology %A Ross, Martin E. %K #Fieldtrips %K #MassGeology %K #MassGeologyBooks %K Anneite %K Cape Anne %K diabase %K dikes %K Dogtown %K dogtown morraine %K erratics %K gabbro %K Gloucester %K granite %K Halibut Point %K Manchester by the Sea %K morraine %K phenocrysts %K Rafe's Chasm %K Rockport %X "Cape Anne, Massachusetts has long been famous for its spectacular scenery and intriguing geology. This volume, written by a long time resident and geologist, brings to life the secrets of Cape Anne's geology as well as the environmental impact current and past land use has had on the cape from a geological perspective. Also included is a geologic field guide to ten fascinating localities along the rocky shore." - From the book cover. To obtain a copy, contact Martin Ross at m.ross@neu.edu The book is also available on Amazon.com %G eng %U http://www.researchgate.net/publication/275963133_Cape_Ann_Its_Physical_and_Environmental_Geology %0 Conference Proceedings %B Abstracts with Programs - Geological Society of America %D 2000 %T Geochemistry of gneisses and amphibolites in the Uchee Belt of western Georgia and eastern Alabama; an ACRES progress report %A Joseph P Kopera %A Nicholas, Brian %A Todd, Dave %A Davison, Jeff %A Hanley, Tom %A Kar, Aditya %A La Tour, Timothy E. %A Edwards, Tonya %K #StaffPubs %K Alabama %K amphibolite %K chemical composition %K Columbus Georgia %K dikes %K Georgia %K gneisses %K Igneous and metamorphic petrology 05A %K inclusions %K intrusions %K metamorphic rocks %K Muscogee County Georgia %K Uchee Belt %K United States %K xenoliths %X Undergraduate students, high school teachers, and university faculty representing ACRES (Atlanta Consortium for Research in Earth Sciences) studied lineated gneiss (LG) exposed at Flat Rock Park (FRP) and vicinity in Columbus, GA, and Motts gneiss (MG) in eastern Alabama. The LG and MG are mineralogically and geochemically granitoidal lineated orthogneisses. They contain deformed mafic xenoliths, as well as aplitic, granitic and pegmatoidal dikes that cut the dominant lineation. Based on chemical analyses, the LG from FRP and the MG plot as granite on the IUGS diagrams and the Le Bas diagram. Similarity in incompatible trace element ratios (e.g., Zr/Nb) and highly evolved characteristics of aplite with respect to the host gneisses, indicate there is probably a genetic link between the MG and the FRP LG. These rocks are chemically distinct from other nearby felsic gneiss. Phenix City gneiss amphibolites from Lindsey Creek and North Highland Mills dam in Columbus were also analyzed for major and trace elements. These amphibolites are low K tholeiitic rocks with an island arc affinity and are similar to rocks from the area that have already been analyzed. The amphibolites show a wide range of fractionation (41 to 62 percent SiO (sub 2) ). Consistency in incompatible element ratios over a wide range of fractionation of some of the samples show a probable genetic relationship among the various amphibolites of Lindsey Creek. Future work should involve more extensive collecting and analysis of both felsic rocks and amphibolites in the Uchee belt. More time should also be spent describing the thin sections of the existing collection and comparing the REE patterns for the FRP, MG and other felsic rocks in the Uchee belt. %B Abstracts with Programs - Geological Society of America %I Geological Society of America (GSA) : Boulder, CO, United States %C United States %V 32 %P 31 - 31 %8 2000/03/01/ %@ 00167592 %G eng %N 22 %! Abstracts with Programs - Geological Society of America %0 Conference Proceedings %B Geological Society of America Abstracts with Programs %D 2008 %T The influence of ductile structure and rheological heterogeneity on brittle structures as exhibited by Avalonian granites in southeastern Massachusetts %A Joseph P Kopera %K #StaffPubs %K acadian %K alleghenian %K avalon %K BEDROCK %K dikes %K foliation %K fracture %K fracture system %K fracture trace %K fractures %K granite %K granites %K Hopkinton %K joints %K l-tectonites %K lineaments %K lineation %K Milford %K Upton %X The orientation and geographic distribution of joints, veins, and brittle faults show a conspicuous correlation with the heterogeneous distribution of foliation and lineation intensity in Neo-Proterozoic granites and their deformed counterparts in southeastern Massachusetts. Field mapping and stereonet analysis of brittle and ductile structural data collected during 1:24,000-scale geologic mapping of the Milford quadrangle yielded the following general observations, which suggest that the ductile deformational history of this region appears to have strongly influenced the later development of brittle structures in the same rocks: The behavior of these fractures in relation to ductile structure have implications for rheological constraints on tectonic models of the post-Alleghenian core of the New England Appalachians, hydrogeologic models of regional fractured bedrock aquifers, and the interpretation of topographic lineaments. %B Geological Society of America Abstracts with Programs %7 2 %I Geological Society of America (GSA) : Boulder, CO, United States %C Buffalo, NY %V 40 %P 3 %8 03/2008 %G eng %U https://gsa.confex.com/gsa/2008NE/finalprogram/abstract_134899.htm