HomeScienceLand snail shell: A recorder of weather scale precipitation events

Land snail shell: A recorder of weather scale precipitation events


master mentalism tricks

Credit: CC0 Public Domain

Extreme weather events can exert profound impacts on society, economy and environment. However, short instrumental data limits our understanding of their mechanism and the evaluation of climate models.

The time resolution in traditional paleoclimate studies is usually in months or even longer time, which makes it impossible to reveal extreme weather events that happened at daily to hourly scales.

A research group from the Institute of Earth Environment of the Chinese Academy of Sciences (IEECAS) used land snail shells for extreme weather reconstruction. The study was published in Geochimica et Cosmochimica Acta on May 5.

The group has established several daily-hourly resolution proxies from the marine giant clam shells of Tridacna species using Confocal laser scanning microscope (CLSM) and nano scale secondary ion mass spectroscopy (NanoSMIS).

Now, they further applied these techniques to terrestrial environment. They established a daily-weekly resolution land snail shell oxygen isotope (δ18Os) sequence, which could well reconstruct weather scale precipitation events in the study region.

The Cathaica Fasciola snails are readily available in IEECAS and are selected for ultra-high resolution (~30 micron) δ18Os analysis.

Meanwhile, the precipitation amount and its oxygen isotope compositions were monitored at the campus of IEECAS since 2019. The researchers found that the variations of the ultra-high resolution δ18Os sequence resemble the monitored changes in precipitation (i.e., amount and oxygen isotope), and both oxygen isotope records showed a negative trend from April 2020 to September 2020.

Moreover, the six negative excursions in δ18Os matched well with six time periods of increased precipitation in detail. And there was a strong correlation between the oxygen isotope data of precipitation and snail shell for the six events, suggesting the potential for quantitative reconstruction of precipitation amount using the negative δ18Os data.

This evidence demonstrates that land snail shells are valuable and promising ultra-high-resolution archives for characterizing terrestrial paleoweather, such as extreme precipitation events.

The widely distributed and well-preserved fossil snails in the loess-paleosol sequences on the Chinese Loess Plateau are of great potential in paleo extreme precipitation event reconstructions.

Thus far, the research group have collected a large amount of fossils from various climatic background, and the related paleoweather studies are still on going.

Land snail shells help to reconstruct quantitative temperature More information: Jibao Dong et al, Ultra-high resolution δ18O of land snail shell: A potential tool to reconstruct frequency and intensity of paleoprecipitation events, Geochimica et Cosmochimica Acta (2022). DOI: 10.1016/j.gca.2022.04.015 Provided by Chinese Academy of Sciences

Citation: Land snail shell: A recorder of weather scale precipitation events (2022, May 6) retrieved 30 May 2022 from https://phys.org/news/2022-05-snail-shell-weather-scale-precipitation.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

Read The Full Article Here


trick photography
Advertisingfutmillion

Popular posts

Little Ones – first-look review
Ezra Miller Legal Issues Continue, Charged With Felony Burglary
Predator Movies Ranked Following Prey
‘Curb Your Enthusiasm Shot a Larry Death Scene
Comic-Con Portraits of ‘Ghosts,’ ‘Prey,’ ‘Teen Wolf’ & More Stars
3 Ways to Hear Dialogue Better on TV
‘The Lord of the Rings’: The Rings of Power’ SDCC
Criminal Minds Revival First Look: Paget Brewster Introduces “Sassier” Prentiss
On the Radar Latin: Alejo, Kevin Kaarl & More Emerging
U2 and Gladys Knight to Receive Kennedy Center Honors
Shonka Dukureh, Who Played Big Mama Thornton in Baz Luhrmann’s
Jury orders Alex Jones to pay Sandy Hook parents $49
My Mum is 71 and Loves Zara—Here Are 6 Trends
I Just Tried On M&S’s Best-Selling Jeans, and I’m Officially
Here Are The 3 Products Brittany O’Grady Swears By For
Shop Sunburn Blush Shades for Summer
Using Nonfiction Comics for Learning
BookTrib Giveaway: Living a Healthy Lifestyle Isn’t as Hard as
Interview with Vincent Howard, Author of Crossroad
Interview with Sharon Ward, Author of Dark Tide
Moderate drinking linked to brain changes and cognitive decline
Technologies for single-cell RNA profiling can help dissect the cellular
Claims that girls have a ‘natural’ aversion to physics are
Don’t Fear China’s Falling Rocket—Fear the Future It Foretells
Oppo Tipped to Launch Two Foldable Smartphones Later This Year
The 10 Best TVs We’ve Tested (and Helpful Buying Tips)
Oppo and OnePlus halt sales in Germany after a court
Give Yourself Permission to Buy That Steam Deck