UTILIZING DPLOT, SEDLOG, AND ARCGIS PRO TO ENHANCE GEOLOGIC FIELD SKILLS: ROSENDALE, ULSTER COUNTY NEW YORK

Capstone geologic field mapping courses in undergraduate geoscience programs aim to compliment the academic knowledge with technical field skills. As a pilot study, these tools were used to collect field data using folded lower Paleozoic to mid-Paleozoic sedimentary outcrops consisting of clastic, non-clastic and occasional mixed siliciclastics in Rosendale, Ulster County, New York. Rosendale is known for its classic geological outcrops with variable structural, stratigraphic, paleontological and sedimentological complexities – ideal for a field mapping course. Traditionally, students’ data acquisition in the field and its subsequent laboratory analysis to produce a final geologic field report utilized acetate overlays to produce geologic maps, stratigraphic sections, and cross sections. However, the transition into digital mapping has been a challenge due to the limited resources, software access, and adequate technical training. Nevertheless, a recent experiment in utilizing simple-interface softwares such as sedlog, Dplot, and ArcGIS Pro result in additional techniques that enhance data acquisition, graphic representation, and geological interpretation. Employing ArcGIS Pro to initiate geologic field layouts and digital geologic maps enabled students to optimize the accuracy of measurements and geologic correlation of both limited and well-spaced outcrops. Dplot capability of constructing geomorphic profiles to project folding and faulting has provided students with an opportunity to reconstruct the past geological settings and draw conclusions pertaining to the development of the sedimentary basin over time. Constructing stratigraphic type sections via Sedlog generated digital data projections with paleocurrents, sedimentary facies, and stratal thickness. In addition to generating maps and reports suitable for undergraduate research presentation, integrating this software spiked students’ enthusiasm and readiness for conducting geologic fieldwork and, ultimately to pursue higher education and training in geospatial technologies

RECRUITING AND RETAINING K9–16 STUDENTS THROUGH FIELD- AND LABORATORY - BASED GEOSCIENCE EXPERIENCES

Since 2004, we have been directly involved with the GSA to provide access and opportunities for K9-16 students, particularly those interested in the broader aspects of geoscience-related topics, to present their field-and- laboratory based research outcomes at professional conferences and to learn from each other. So far, well-over 400 students from the U. S. and abroad have taken advantage of this opportunity and participated our topical sessions. It is quite gratifying to report that many of these students, as a result of their attendance at the GSA conference, felt a continuing need for exposure to high-level professional venues with effective knowledge-sharing and improving the level of understanding of the presented material. In addition, several presenters enthusiastically acknowledged their satisfaction with the significance of attendance at such high level meetings and potential to improve their chances of professional employment. Potential employers valued their experiential learning skills from both the educational and communications point of view and appreciated their endeavors and the preparation needed to attend and present at GSA conferences. Present-day extreme weather phenomena, environmental degradation, increased mega-flooding event, landslides, access to fresh drinking water, build-up or upgrading of aging infrastructures, etc. are closely tied to geological processes and anthropogenic practices. Students need to observe and connect geoscience concepts and understanding of the various phenomena, including representative case studies, to validate geoscience as a transformative discipline and its interdependence with other STEM disciplines such as physics, chemistry, and biology. We strongly believe that the future geoscience workforce needs to be trained from as early as the K9-12 grades via an integrated earth science curriculum that allows an open access to field-and research based content, creates inquiry-based knowledge, promotes group dynamics, and instills a sense of belonging. Given that over 70,000 K9-12 students took the Earth Science Regents examination last year in New York City alone, it will be worthwhile to work with the new cohort and provide them with a variety of learning tools to engage, inspire and attract them to the future geoscience-related workforce build-up

PALEOENVIRONMENT OF THE DEVONIAN FOSSILIFEROUS GLENERIE LIMESTONE, ROSENDALE, UPSTATE NEW YORK

The Devonian Glenerie limestone outcrops throughout the Hudson Valley and is believed to correlate with the glauconite-rich Oriskany sandstone elsewhere in upstate New York. Field inspection of well-preserved outcrops in Rosendale, upstate New York, indicated the Glenerie formation to be composed of both thin and thickly-bedded chert, interbedded shale, and both calcareous to arenaceous limestone. The Glenerie formation is dominated by spirifer arenosis fossil, which is the index fossil for this formation. The goal of this research is to determine the conditions of the paleoenvironment prevalent to the deposition of the Glenerie formation. Within the arenaceous layers are the spirifer arenosis, Rensselaeria, and the Murchisoni fossils, which are shells that were deposited in a shallow marine environment. The calcareous layers are greatly affected by weathering and erosion that exposed fossils and trapped artifacts. The lithology of the area of focus, the inter-lake area of Rosendale, New York, encompasses formations of sedimentary strata ranging from Ordovician to the Devonian periods. The inter-lake area is severely faulted and folded, resulting from the continents of Europe and North America colliding. The Glenerie formation is bordered by the Port Ewen limestone to the east, and the Esopus shale to the west. The lithological and faunal content of the Glenerie formation changed as the depositional environment changed from shallow to deep water. The fossils indicated organisms with thick shells and presumably provided protection from being winnowed away in a shallow high energy marine environment. The preserved fossil record, along with bedded chert in the Glenerie formation suggest fluctuation in sea level followed by rapid burial of organisms