Description

Location: Henderson, NV/Virtual

Contact: joshua.bonde@nvscicenter.org

GSN SOUTHERN NEVADA CHAPTER

 The GSN Southern Nevada Chapter will be hosting a Zoom meeting on Thursday, February 4, 2021 at 5:45 p.m.

Speaker:   Dr. Kevin Konrad, new Asst. Professor, Dept. of Geosciences, UNLV

 Title: “Mapping long-lived Pacific Hotspots through isotopic fingerprinting and 40Ar/39Ar geochronology”

Zoom Meeting Login Information:

Time: Feb 4, 2021 05:45 PM Pacific Time (US and Canada)
Join Zoom Meeting: https://us02web.zoom.us/j/83921248576?pwd=VUN3WmdzUGxOVlhqOHpvZjcvbDNnZz09

Meeting ID: 839 2124 8576
Passcode: GSNSouth

Abstract:

The Pacific basin hosts some of the most dramatic volcanic seafloor features on Earth. This includes the prominent Hawaiian-Emperor Seamount Chain, the massive Ontong-Java Plateau, and numerous seamounts in the French Polynesia-Cook Australs region. My research focuses on how long the mantle hotspots sourcing these volcanic provinces last and how they evolve through time. This talk will focus on the modern day to Cretaceous history of the South Pacific Isotopic and Thermal Anomaly (SOPITA) including Rurutu-Arago, Macdonald, Samoa, and the potentially long-lived Marquesas and Pitcairn hotspots. Mapping the long-lived history of SOPITA mantle plumes is accomplished through coupled geo- chronology, chemistry, and morphology of seamount trails. These age-progressive hotspot tracks can be used to define past plate motions, which can be used to reconstruct past continents and determine the drivers of tectonic processes. Furthermore, hotspot tracks provide vital insights into the composition, history, and dynamics of Earth’s deep interior.

Bio

Kevin is a new assistant professor at UNLV and the director of the Nevada Isotope Geochronology Laboratory (NIGL). Kevin is an argon geochronologist whose research focuses on marine geology, mantle geodynamics and intraplate volcanism. His research incorporates a variety of novel 40Ar/39Ar methodologies including dating non-traditional phases (e.g. clinopyroxene) and micro sampling of altered basalts.

Thank you,

Josh Bonde,  GSN Southern Nevada President

joshua.bonde@nvscicenter.org

Details

02/04/2021 17:45:0002/04/2021 19:30:00America/Los_AngelesGSN Southern Nevada Chapter Meeting – Thurs., Feb. 4, 2021GSN SOUTHERN NEVADA CHAPTER  The GSN Southern Nevada Chapter will be hosting a Zoom meeting on Thursday, February 4, 2021 at 5:45 p.m. Speaker:   Dr. Kevin Konrad, new Asst. Professor, Dept. of Geosciences, UNLV  Title: “Mapping long-lived Pacific Hotspots through isotopic fingerprinting and 40Ar/39Ar geochronology” Zoom Meeting Login Information:

Time: Feb 4, 2021 05:45 PM Pacific Time (US and Canada) Join Zoom Meeting: https://us02web.zoom.us/j/83921248576?pwd=VUN3WmdzUGxOVlhqOHpvZjcvbDNnZz09

Meeting ID: 839 2124 8576 Passcode: GSNSouth Abstract: The Pacific basin hosts some of the most dramatic volcanic seafloor features on Earth. This includes the prominent Hawaiian-Emperor Seamount Chain, the massive Ontong-Java Plateau, and numerous seamounts in the French Polynesia-Cook Australs region. My research focuses on how long the mantle hotspots sourcing these volcanic provinces last and how they evolve through time. This talk will focus on the modern day to Cretaceous history of the South Pacific Isotopic and Thermal Anomaly (SOPITA) including Rurutu-Arago, Macdonald, Samoa, and the potentially long-lived Marquesas and Pitcairn hotspots. Mapping the long-lived history of SOPITA mantle plumes is accomplished through coupled geo- chronology, chemistry, and morphology of seamount trails. These age-progressive hotspot tracks can be used to define past plate motions, which can be used to reconstruct past continents and determine the drivers of tectonic processes. Furthermore, hotspot tracks provide vital insights into the composition, history, and dynamics of Earth’s deep interior. Bio Kevin is a new assistant professor at UNLV and the director of the Nevada Isotope Geochronology Laboratory (NIGL). Kevin is an argon geochronologist whose research focuses on marine geology, mantle geodynamics and intraplate volcanism. His research incorporates a variety of novel 40Ar/39Ar methodologies including dating non-traditional phases (e.g. clinopyroxene) and micro sampling of altered basalts. Thank you, Josh Bonde,  GSN Southern Nevada President joshua.bonde@nvscicenter.org
Reno, NV
Event StartsEvent Ends
02/04/202102/04/2021
All Day Event
5:45pm7:30pm