Destiny: Dr. Joanne Ballard, Earth Impact, 12,000+ years ago and the Megafauna Extinction
Earth Ancients10 Juli 2024

Destiny: Dr. Joanne Ballard, Earth Impact, 12,000+ years ago and the Megafauna Extinction

Dr. Joanne Ballard
Joanne has a PhD in Geography from the University of Tennessee with specializations in Biogeography and Quaternary Environments, advised by Dr Sally Horn, palynologist. She has a M.S. in Geology from the University of Cincinnati, studying under glaciologist Dr. Thomas Lowell. She has also worked as an Archaeologist for the Tennessee Valley Authority as a Database Analyst and Mapping expert. In addition, Joanne worked for the US Census Bureau as an Analyst and Cartographic Technician, giving technical support, troubleshooting, and training personnel on addressing projects. Currently, Joanne is serving as a Naturalist at a local museum, and working with Czech colleagues on YDB research led by Dr. Evzen Stuchlik at the Czech Academy of the Sciences. Joanne is a catastrophist, and collaborates with the Comet Research Group.
Joanne has been intrigued with the causation for the megafauna extinction since the 1990s. She met Rick Firestone at the Mammoth Conference in 2005 at Hot Springs, SD. When he and others presented their hypothesis on a bolide strike as causation for the Younger Dryas onset (Firestone et al. 2007), she wanted to look for evidence. Lake mud contains various proxies that help us gain insights into past environments, such as charcoal (wildfires), pollen and macrofossils (vegetation), diatoms, chironomids (climate) and chemistry--isotopes and elements. Lake mud is considered less disturbed (such as by roots, earthworms, freeze/thaw) than terrestrial sediment or soil. At UC, she and her team drilled through the ice to collect cores from four lakes near Flint, Michigan, two of which (Slack and Swift Lakes) are adjacent to the Gainey archaeological site mentioned by Firestone et al. (2007). At UT, she studied lake sediments from sites in the southeastern USA. She discovered a new proxy for wildfires--possibly catastrophic wildfires--which are siliceous aggregates. These form in wood ash. After a tree burns to ash, the silica phytoliths that were part of the structure of the tree are deposited with the wood ash. When that highly alkaline ash gets wet, it causes the phytoliths to dissolve, and the silica gel percolates down through the ash and then hardens up around silt or other particles in the sediment. Five of six lakes sampled across eastern North America showed siliceous aggregates around the time of the onset of the Younger Dryas, suggesting widespread, catastrophic wildfires. However, more work needs to be done to support this interpretation.
Joanne has also researched Usselo Horizon sites (typically YDB-age black mats) in The Netherlands and Belgium to understand the events that triggered the onset of the Younger Dryas (12,900 - 11,600 BP). At four Usselo horizon sites across the NL and BE, she found fused quartz, soot, charcoal, melt glass and sponge spicules.See her PPT presentation "Usselo Horizon Presentation" here:https://www.researchgate.net/profile/Joanne-Ballard/research
Did humans tame woolly mammoths? See the discussion here with 821 postshttps://www.researchgate.net/topicshttps://www.researchgate.net/post/Did-humans-tame-woolly-mammoths-or-other-megafauna
Joanne's dissertation can be accessed and downloaded for free here:https://trace.tennessee.edu/utk_graddiss/3492/Evidence of Late Quaternary Fires from Charcoal and Siliceous Aggregates in Lake Sediments in the Eastern U.S.A.
Her MS thesis can be accessed for free here: https://etd.ohiolink.edu/acprod/odb_etd/etd/r/1501/10?clear=10&p10_accession_num=ucin1250268463A Lateglacial Paleofire Record for East-central Michigan
Rick Firestone's paper:https://www.pnas.org/doi/10.1073/pnas.0706977104 Evidence for an extraterrestrial impact 12,900 years ago that contributed to the megafaunal extinctions and the Younger Dryas cooling-- Sent with Tuta; enjoy secure & ad-free emails: https://tuta.com


Become a supporter of this podcast: https://www.spreaker.com/podcast/earth-ancients--2790919/support.

Avsnitt(925)

Preston Peet: Disinformation Guide to Ancient Aliens, Lost Civilizations, Etc.

Preston Peet: Disinformation Guide to Ancient Aliens, Lost Civilizations, Etc.

*Previously published as Underground!Where did "modern" civilization begin? What lies beneath the waves? Do myths describe interstellar impact? How'd they lift that stone? Was the Ark of the Covenant ...

15 Nov 20141h 12min

Christopher Dunn: Lost Technologies of Ancient Egypt

Christopher Dunn: Lost Technologies of Ancient Egypt

Christopher P. Dunn, born 1946 in Manchester, England, is an English author known for the book The Giza Power Plant: Technologies of Ancient Egypt, which claims that precision machining is evident in ...

8 Nov 20141h 22min

Steve Meads: The Chauvet Cave

Steve Meads: The Chauvet Cave

The Chauvet cave was painted approximately 30,000 years ago and the dreams were buried and sealed for 20,000 years by a land slide.The site and its contents were discovered in 1994 and rocked the worl...

1 Nov 20141h 7min

Scott Creighton: The Secret Chamber of Osiris

Scott Creighton: The Secret Chamber of Osiris

After nearly 200 years of the pyramid-as-tomb theory, a growing body of evidence suggests the first 16 pyramids of ancient Egypt were not royal tombs but nearly indestructible recovery vaults designed...

25 Okt 20141h 14min

Dr. Heather Lynn: Land of the Watchers

Dr. Heather Lynn: Land of the Watchers

Ancient aliens, suppressed technology, stargates, free energy, royal bloodlines; these are just some of the many theories that have been proposed to explain the secrecy behind Sumerian archaeological ...

18 Okt 20141h 23min

Steven Myers: Lost Technologies of the Great Pyramid

Steven Myers: Lost Technologies of the Great Pyramid

Steven Myers is the author of two books. His first book is titled: Lost Technologies of the Great Pyramid. His second book is titled: The Great Pyramid Prosperity Machine.Author, lecturer and independ...

11 Okt 20141h 13min

Robert Bauval: Secret Chamber Revisited

Robert Bauval: Secret Chamber Revisited

A Firsthand, Behind-the-Scene Account of the Controversies Surrounding Modern Explorations at GizaSince 1993 Robert Bauval has been embroiled in the many controversies involving the search for the los...

4 Okt 20141h 20min

William Veall: Portraits of the Gods

William Veall: Portraits of the Gods

One of the Worlds' greatest archaeological mysteries, one which has excited man's imagination for countless  centuries, is whether  ancient Sea Peoples from the Old World were actually able, and did, ...

27 Sep 20141h 30min

Populärt inom Vetenskap

dumma-manniskor
p3-dystopia
allt-du-velat-veta
kapitalet-en-podd-om-ekonomi
svd-nyhetsartiklar
rss-vetenskapsradion
det-morka-psyket
rss-ufo-bortom-rimligt-tvivel-2
rss-vetenskapsradion-2
medicinvetarna
sexet
paranormalt-med-caroline-giertz
hacka-livet
rss-spraket
vetenskap-och-halsa
rss-tidslinjen-podcast
dumforklarat
halsorevolutionen
bildningspodden
vetenskapsradion