Public Lecture Series


A listing of our lecture series videos and flyers.

Filter Total Items: 195
October 25, 2007

PubTalk 10/2007 — Fire As An Ecosystem Process

Past, Present, And Future

By Jon E. Keeley, Research Ecologist 


  • Plants have evolved over hundreds of millions of years with fire.
  • Are human-induced changes threatening naturally fire-prone ecosystems?
  • How has human suppression of fire affected different ecosystems?
  • Will predicted climate
September 27, 2007

PubTalk 9/2007 — A Tale of Two Kelp Forests

Sea Otters and Ecosystem Dynamics in the Aleutians and the Commander Islands

By Tim Tinker, Research Biologist, University of California, Santa Cruz 

Sea otter populations in the central and western Aleutian Islands have declined by 75-95% over the past 15-20 years, while populations in the nearby Russian Commander Islands have remained

August 30, 2007

PubTalk 8/2007 — Dark Holes in Muir's "Range of Light"

Insights from southern Sierra Nevada caves and karst

By John C. Tinsley, Geologist

  • Water long ago carved many caves in carbonate rocks of the Sierra Nevada
  • As the Sierra (John Muir's "Range of Light") was uplifted, successively deeper caves were drained and decorated during the past 5 million years
  • Vertical
July 26, 2007

PubTalk 7/2007 — Plate Tectonics in Action

Exploring the Earth with the new edition of This Dynamic Planet map and Web site

By Robert Tilling, Volcanologist, and Stephen Kirby, Earthquake Geophysicist

  • Improved digital data on the distribution of Earth's volcanoes, earthquakes, and meteorite impact craters
  • Special maps of polar regions, showing
June 28, 2007

PubTalk 6/2007 — Adventures in Southwest Geology

Exploring the colorful southern Colorado Plateau in 3-D

By Philip Stoffer, Geologist

Take a colorful tour with the help of 3-D photography through some of the region's highlights:

  • A plethora of parklands- Petrified Forest, Chaco Canyon, Wupatki, Grand Canyon
  • High desert climate changes, past, present, and
May 31, 2007

PubTalk 5/2007 — Alchemy in the Abyss

Probing the mysteries of deep-ocean minerals

By James R. Hein, Marine Geologist

  • Since President Reagan in 1983 extended U.S. mineral rights 200 nautical miles offshore, interest in deep-sea mining has increased
  • Massive sulfide deposits form rapidly at very hot ephemeral smokers. and .white smokers.
  • Slow-
April 26, 2007

PubTalk 4/2007 — Shock Waves

How the 1906 earthquake shook up California and science

A presentation of the award-winning USGS Video Shock Waves introduced by David Schwartz, Earthquake Geologist 

  • The 46-minute film Shock Waves includes dramatic historical footage, colorful animations, and interviews with earthquake experts
  • Shock Waves received
March 22, 2007

PubTalk 3/2007 — Impact!

Piecing together the story of a giant meteorite crater beneath the Atlantic coast

By David S. Powars, Geologist, and R.D. Catchings, Geophysicist

  • Buried under Chesapeake Bay is a very well preserved impact structure 56 miles across and more than 2 miles deep
  • Following clues from drill holes and seismic imagery, careful
February 22, 2007

PubTalk 2/2007 — Riding the Storm

Landslide Danger in the Bay Area Hills

Peter Lyttle, National Landslide Hazards Program Coordinator,
will introduce the USGS premiere of the documentary
Riding the Storm by Karen Adams. A question-and answer session
with the producer, USGS researchers, and residents
featured in Riding the Storm will follow.

January 25, 2007

PubTalk 1/2007 — The Hidden World of the Golden Gate

How tides, currents, and humans have created an array of sea-floor features

By Patrick Barnard, Marine Geologist, and Peter Dartnell, Physical Scientist

  • A century of technical advances allow scientists to identify and visualize spectacular sea-bottom features
  • Recent collaborative research outside the Golden Gate found that 100
December 14, 2006

PubTalk 12/2006 — The Mojave National Preserve

Geology and Water Shape Desert Plant Communities

by David Miller, Geologist and John Nimmo, Soil Hydrologist


  • One of the largest units in the National Park System, the Mojave National Preserve was established in 1994
  • The Preserve encompasses great sand dunes (including "singing sands"), young volcanic features,
November 16, 2006

PubTalk 11/2006 — Drills, Spills, and Chills

The inside story on USGS estimates of Alaskan oil and gas resources

by Ken Bird and Rick Stanley, Geologists


  • See the basic elements of a petroleum system.where the oil comes from and where it goes
  • USGS resource assessments in Alaska have a long history and have changed over time
  • Learn how the newest