Coastal honeycombs (Tuscany, Italy): Moisture distribution, evaporation rate, tensile strength, and origin

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F22%3A00554474" target="_blank" >RIV/67985831:_____/22:00554474 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/22:10454552

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/10.1002/esp.5340" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/esp.5340</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/esp.5340" target="_blank" >10.1002/esp.5340</a>

Result language

angličtina

Original language name

Coastal honeycombs (Tuscany, Italy): Moisture distribution, evaporation rate, tensile strength, and origin

Original language description

Cavernous weathering (honeycombs, tafoni) is a common weathering feature of both natural and artificial exposures. Honeycombs are known from various environments but are best developed in coastal areas. There are several theories as to their origin, with salt weathering currently being the most favoured by the geomorphological community. To test if the drying pattern of salt-laden moisture results in honeycombs (the theory of Huinink et al., Earth Surface Processes and Landforms, 29(10), 1225– 1233, 2004), coastal honeycombs in the metasandstone of Tuscany (Italy) were studied both in the field and with a laboratory evaporation experiment. The depth of the evaporation front was measured by the ‘uranine-probe’ method in the honeycomb pits and lips. The evaporation rate was calculated from the depth of the evaporation front as well as the climatic conditions at the study site. Lastly, the amounts of precipitated salts were estimated based on the evaporation rate of seawater. In the evaporation experiment, the evaporation front retreated faster in the lips than in the pits, and the field measured evaporation front was closer to the surface in the pits (2 mm) than in the lips (7 mm). Thus, the calculated evaporation rate was higher in the pits than in the lips (16.1 and 4.6 mm/yr, respectively). Similarly, the amount of salts precipitated was also higher in the pits (0.7 kg/m2/yr compared to 0.2 kg/m2/yr in lips). Faster salt deposition in the pits as well as the evaporation front position fits well with the theory of Huinink et al. Based on surface tensile strength measurements, case hardening is not protecting the honeycomb lips.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10505 - Geology

Project

<a href="/en/project/GA19-14082S" target="_blank" >GA19-14082S: Stress- and hydraulic field-controlled weathering and erosion of granular rocks</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Earth Surface Processes and Landforms

ISSN

0197-9337

e-ISSN

1096-9837

Volume of the periodical

47

Issue of the periodical within the volume

6

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

1653-1667

UT code for WoS article

000759491200001

EID of the result in the Scopus database

2-s2.0-85125094626