Submission Type
Poster
Abstract
An igneous intrusion was discovered while completing a geologic mapping project on the Kelso 7.5-minute quadrangle in San Bernardino California. This dike is located at 35 degrees 3’47” N and 115 degrees 40’47” and has an unknown age. The objective of our research entails examining samples extracted from the dike, using a paleomagnetic demagnetization experiment to determine the age of when the dike was emplaced. Samples were collected during a research expedition to Southern California. On site they were orientated and collected. They were then brought back to the lab where they had cores drilled on them. Of the cores drilled five were usable. They were then spun on the spinner and subjected to incremental heating until the temperature of 700 degrees Celsius was met. Results wield an average declination of 162.6 and an average inclination of 22.4. These results are promising but the potential rotation of the sample suggests more samples are needed to conclusively determine the age of this dike.
Recommended Citation
Sharlow, Wesley, "133-Paleomagnetism of a Dike in Kelso, CA" (2024). GREAT Day Posters. 31.
https://knightscholar.geneseo.edu/great-day-symposium/great-day-2024/posters-2024/31
133-Paleomagnetism of a Dike in Kelso, CA
An igneous intrusion was discovered while completing a geologic mapping project on the Kelso 7.5-minute quadrangle in San Bernardino California. This dike is located at 35 degrees 3’47” N and 115 degrees 40’47” and has an unknown age. The objective of our research entails examining samples extracted from the dike, using a paleomagnetic demagnetization experiment to determine the age of when the dike was emplaced. Samples were collected during a research expedition to Southern California. On site they were orientated and collected. They were then brought back to the lab where they had cores drilled on them. Of the cores drilled five were usable. They were then spun on the spinner and subjected to incremental heating until the temperature of 700 degrees Celsius was met. Results wield an average declination of 162.6 and an average inclination of 22.4. These results are promising but the potential rotation of the sample suggests more samples are needed to conclusively determine the age of this dike.