Building Big Bioherms from Humble Halimeda

Explore the fascinating world of Halimeda algal bioherms in this 58-minute lecture from Seds Online. Dive into the largest living, actively accumulating Halimeda deposits found in the Great Barrier Reef, Australia. Discover how these bioherms initiated the outer-shelf carbonate factory approximately 2000 years before nearby coral reefs following the Holocene post-glacial marine transgression. Gain new insights into their surface geomorphology, subsurface architecture, and depositional environment through recent multi-disciplinary research. Learn about Halimeda's unique characteristics, bioherm formation, and differentiation from other structures. Examine seismic profiles, outcrop examples, and comparisons to other Halimeda deposits. Explore vibro core data, nitrogen isotope analysis, and biodiversity statistics. Investigate the present-day distribution, geomorphology modeling, and surface morphology of these bioherms. Discuss future research directions, climate change scenarios, ocean acidification effects, and comparisons to Halimeda meadows. Gain valuable knowledge applicable to both modern and fossil Halimeda deposits in this comprehensive lecture on building big bioherms from humble Halimeda.

Introduction
Agenda
What is Halimeda
What is a bioherm
Great Barrier Reef example
Differentiation
Scale
Halometer
Seismic profile
Example in outcrop
Comparison to other Halimedas
Vibro cores
Great Barrier Reef
Inter Reef Lagoon
Halimeda distribution
When
Why
nitrogen isotope analysis
results
present day distribution
nitrogen isotope results
biodiversity
statistics
geomorphology
morphology
sea floor
geomorphology modeling
surface morphology
are there other bioherms
whats next
internet went out
Do you have any samples
Future climate change scenarios
Are the bioherms alive
How do your bioherms compare to Halimeda meadows
Climate change effect on Halimeda
Halimeda cement
Ocean acidification
Summary
Outro