Including Original "Paul H. Letters" Copyright © 1996-2024 Paul V. Heinrich / website © 1996-2024 Dirk Ross - All rights reserved.



Wednesday, 22 September 2021

Prehistoric Tunguska-sized Airburst in Jordan Valley 22SEP2021

Prehistoric Tunguska-sized Airburst in Jordan Valley

Bunch, T.E., LeCompte, M.A., Adedeji, A.V. et al. 
A Tunguska sized airburst destroyed Tall el-Hammam a Middle Bronze Age city in the Jordan Valley near the Dead Sea. Sci Rep 11, 18632 (2021).
https://doi.org/10.1038/s41598-021-97778-3

https://www.nature.com/articles/s41598-021-97778-3

Yours,

Paul H.

Monday, 20 September 2021

OT: LIVE: Volcano erupts on La Palma in the Canary Islands 20SEP2021

OT: LIVE: Volcano erupts on La Palma in the Canary Islands

Not meteorites, but still cool geology, look at LIVE: Volcano erupts on La Palma in the Canary Islands:
https://www.youtube.com/watch?v=CmQVquojJfo

I hope those are not urban lights in the foreground.
I do not know what the background chatter is about.

Stay Safe,

Paul

Sunday, 5 September 2021

Photogrammetric documentation of geologic features with a smartphone 05SEP2021

Photogrammetric documentation of geologic features with a smartphone

Below is an open access paper about photogrammetric documentation of geologic features in the field with a smartphone.

Corradetti, A., Seers, T.D., Billi, A. and Tavani, S., 2021.
Virtual Outcrops in a Pocket: The Smartphone as a Fully Equipped Photogrammetric Data Acquisition Tool. GSA Today, 31(9)
https://www.geosociety.org/GSA/Publications/GSA_Today/features/GSA/GSAToday/science/G506A/article.aspx

Related paper is:

Tavani, S., Corradetti, A., Granado, P., Snidero, M., Seers, T.D., and Mazzoli, S., 2019, 
Smartphone: An alternative to ground control points for orienting virtual outcrop models and assessing their quality: Geosphere, v. 15, p. 2043–2052,
https://doi.org/10.1130/GES02167.1

https://pubs.geoscienceworld.org/gsa/geosphere/article/15/6/2043/574968/Smartphone-An-alternative-to-ground-control-points

Yours,

Paul H.