Upcoming Meetings

All are welcome – no admission charge
Social Hour starts at 6:30, meeting at 7:00

CSS October 19th Meeting; Using Geoscience to Augment Environmental Public Health Studies

Suzette Morman, Crustal Imaging and Characterization, USGS

All are welcome; no admission charge.

When: Thursday, October 19, 2017
6:30-7:00 PM, Social time with light refreshments
7:00-9:00 PM, Program

Where: Shepherd of the Hills Presbyterian Church,
11500 W. 20th Ave., Lakewood CO
Map for Shepherd of the Hills

Abstract: Using Geoscience to Augment Environmental Public Health Studies
For many years, health studies related to the environment were sometimes limited in their focus like those in other science disciplines. For example, epidemiological studies of lung cancer in uranium mine workers in Europe and the Southwestern United States (1950’s and 60’s) concluded radioactive radon daughters were likely responsible. But these studies did not examine any possible contribution from exposure to other toxic elements present in the ore such as arsenic. The application of geoscience knowledge, methods and techniques to environmental health related studies have provided important information over the past few decades. Interdisciplinary research, more common in the past decade, is essential to solve complex environmental issues.

Suzette Morman

Speaker Biography: Suzette Morman is a geologist in the Crustal Geophysics and Geochemistry Science Center, U.S. Geological Survey, Denver. Her current research involves the interface between minerals and human health, examining concerns such as bioaccessibility and biodurability of earth materials. She uses both analytical and experimental techniques to investigate geochemical and physiological processes that play a role in the health effects of earth materials. Other interests include exposure science and natural disasters. Prior to graduate studies in geological sciences, Suzette was a nurse clinician who provided acute, chronic, and hospice care and undertook management roles as well. Thus, she is uniquely qualified to synthesize the geochemical and medical aspects of earth materials and human health. Her publications include studies on mineral dust and human health, potential health effects of folk remedies, and bioaccessibility of trace metals in mine wastes.

Remaining Colorado Scientific Society Talks in 2017

Thursday, Nov. 16, 2017
Earth’s Earliest Evolution: Fire from above, fire from below

Simone Marchi, Southwest Research Institute, Boulder

Abstract: In the aftermath of the giant collision resulting in the formation of the Moon, about 4.5 billion years ago, the Earth experienced a protracted time of bombardment by leftover planetesimals. In this talk I will present a new bombardment model of the Hadean Earth that has been calibrated using existing lunar and terrestrial geochemical data. We find that the surface of the Hadean Earth was widely reprocessed by impacts through mixing and burial by impact-generated melt. This model may explain the absence of early terrestrial rocks. In addition, by tracking the magnitude and timing of large collisions, we find that existing oceans would have repeatedly boiled away into steam atmospheres as late as about 4 billion years ago. These findings have important implications for the formation and stability of early habitable environments and the onset of life. Finally, I will discuss recent developments in understanding the effects of collisions on the tectonic evolution of the early Earth, as well as the formation of impact-induced geochemical heterogeneities that could still persist in terrestrial mantle rocks.

An artistic conception of the Hadean Earth. Huge, impact-generated lava lakes coexisted with surface liquid water, under a thick greenhouse atmosphere sustained by lava outgassing (credit: SwRI/Simone Marchi, Dan Durda).

Short Bio:
My research interests span from the formation and geology of terrestrial planets the moon and asteroids, to the spectroscopy and dynamics of minor bodies and meteorites.
I am an associate with several space missions, including: NASA’s Dawn, Lucy, Psyche, and ESA’s Rosetta, BepiColombo, JUICE.
I have been a fellow at the NASA Lunar Science Institute, the Observatoire de la Cote d’Azur, the German Aerospace Agency, and Padua University. I hold a PhD in Applied Physics from the Pisa University. More details can be found here: http://www.boulder.swri.edu/~marchi/index.html

Sunday, Nov. 19, 4:00 to 7:00 pm
Family Night at the Colorado School of Mines Geology Museum

An open house at the CSM Geology Museum, hosted by Museum Director (and CSS Councilor) Dr. Bruce Geller.

Wednesday, Dec. 13, 2017
Colorado Scientific Society President’s address

Marith Reheis, Emeritus USGS
We will have a potluck dinner before the address.
Note: This meeting is on a Wednesday, not on Thursday.
At The Arbor House, Maple Grove Park (Applewood area)
14600 W 32nd Ave., Golden CO 80401

All are welcome – no admission charge
Social Hour starts at 6:30, meeting at 7:00

Meetings are normally at:
Shepherd of the Hills Presbyterian Church
11500 W. 20th Ave., Lakewood CO

See Abstracts (under Events) for previous Colorado Scientific Society Talks