The local marine reservoir effect at Kalba (UAE) between the Neolithic and Bronze Age: An indicator of sea level and climate changes

Lindauer, Susanne; Santos, Guaciara M.; Steinhof, Axel; Yousif, Eisa; Phillips, Carl; Jasim, Sabah Abboud; Uerpmann, Hans‐Peter; Hinderer, Matthias

doi:10.1016/j.quageo.2017.09.003

Cited by 29 publications

(21 citation statements)

References 41 publications

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“…Other studies support this. Lindauer et al (2017) reveal a change in the reservoir effect between 7000 and 6500 cal yr BP and ~4000 cal yr BP. This indicates a shift in sea currents, which are mainly influenced by climate circulation patterns and may show an alteration of those.…”

Section: Discussionmentioning

confidence: 99%

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Collapse of Holocene mangrove ecosystems along the coastline of Oman

et al. 2020

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Sedimentological, geochemical, and paleontological investigations of the coastline of northeastern Oman have provided the authors with an in-depth insight into Holocene sea levels and climate conditions. The spatial distribution and species assemblage of mangrove ecosystems are analyzed. These ecosystems are sensitive to changes in sea level and precipitation and thus reflect ecological conditions. The close proximity to archaeological sites allows us to draw conclusions regarding human interaction with the mangrove ecosystems. Our interdisciplinary inquiry reveals that the mangrove ecosystems along the east coast of Oman collapsed ~6000 cal yr BP on a decadal scale. There is no sedimentological evidence for a mid-Holocene sea-level highstand. The ecosystem collapse was not caused by sea-level variation or anthropogenic interferences; rather, it was the consequence of reduced precipitation values related to a southward shift of the Intertropical Convergence Zone. This resulted in a decrease of freshwater input and an increase in soil salinity. Further, the aridification of the area caused increased deflation and silting up of the lagoons.

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Section: Discussionmentioning

confidence: 99%

“…The bulk sediments samples were pretreated using a standard acid-base-acid solution to remove carbonates and humic acids (Lindauer et al, 2017). Shells were pretreated with diluted acid (HCl) to remove the outer, most probably contaminated, part of the shell material.…”

Section: Ams Datingmentioning

confidence: 99%

Collapse of Holocene mangrove ecosystems along the coastline of Oman

et al. 2020

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“…The 14 C content of these gastropod may not represent seawater DIC 14 C content, as their 14 C content depends on the carbon reservoir of their prey (Hua 2015). Lindauer et al (2017) had also observed influence of food resource and habitat on the ΔR of bivalve and gastropod from Gulf of Oman region. Therefore, enriched values in mollusk (Asaphis deflavata, Thais sp.)…”

Section: Methodsmentioning

confidence: 99%

Marine Reservoir Age Correction for the Andaman Basin

et al. 2020

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Marine reservoir age is an important component for correction in radiocarbon (14C) dating of marine and coastal samples. 14C concentration in pre-bomb marine samples of known age are used to derive marine reservoir age of a region. Annually banded coral from Landfall island in the northern Andaman has been analyzed for its 14C concentration during the pre-bomb period 1948–1951. 14C age and reservoir effect (∆R) are reported for these pre-bomb coral samples from the northern Andaman region. The mean 14C age of 331 ± 61 yr BP was obtained for the period 1948–1951 with an average reservoir age correction of –138 ± 61 yr. This reservoir age correction is lowest reported from the northern Indian Ocean. ∆R value of the northern Andaman and the Bay of Bengal appears lower than that of southern Andaman. The ∆R values obtained using mollusk shells and coral from the Andaman region shows large variability. The lower reservoir age correction for the Landfall Island situated in the northern part of the Andaman archipelago, could result due to freshwater flux and reduced upwelling in the region.

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“…In general, most of the gastropods incorporate metabolic carbon of no more than 10% (McConnaughey et al, 1997). Recent radiocarbon measurements from the Gulf of Oman (western Arabian Sea) show that modern T. palustris faithfully records the 14 C reservoir age of the mangrove water, indicating a predominance of DIC δ 13 C in their shells (Lindauer et al, 2017). The δ 13 C values of DIC in the mangrove water, in turn, are controlled by two major factors, namely photosynthesis and δ 13 C of the river water or ground water flowing into the basin.…”

Section: Modern Shell Analysismentioning

confidence: 99%

Did the Harappan settlement of Dholavira (India) collapse during the onset of Meghalayan stage drought?

Sengupta

Mukherjee

Bhushan

et al. 2019

J Quaternary Science

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Radiocarbon dating of archaeological carbonates from seven cultural stages of Dholavira, Great Rann of Kachchh (GRK), the largest excavated Harappan settlement in India, suggests the beginning of occupation at ~5500 years BP (pre‐Harappan), and continuation until ~3800 years BP (early part of the Late Harappan period). The settlement rapidly expanded under favourable monsoonal climate conditions when architectural elements such as the Citadel, Bailey, Lower and Middle Town were added between the Early and mid‐Mature Harappan periods. Abundant local mangroves grew around the GRK sustaining prolific populations of the edible gastropod Terebralia palustris. Oxygen isotope (δ18O) sclerochronology of Early Harappan gastropod shell suggests seasonal mixing of some depleted (δ18O ~ −12‰) river water in summer/monsoon months (through ancient Saraswati and/or Indus distributary channels) with seawater that periodically inundated the GRK. Evaporation from this semi‐enclosed water body during the non‐monsoon months enriched the δ18O of water/shell carbonates. The humid fluvial landscape possibly changed due to a catastrophic drought driving the final collapse of the settlement of Dholavira exactly at the onset of the Meghalayan (Late Holocene) stage (~4300–4100 years BP). Indeed, Dholavira presents a classic case for understanding how climate change can increase future drought risk as predicted by the IPCC working group. Copyright © 2019 John Wiley & Sons, Ltd.

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The local marine reservoir effect at Kalba (UAE) between the Neolithic and Bronze Age: An indicator of sea level and climate changes

Cited by 29 publications

References 41 publications

Collapse of Holocene mangrove ecosystems along the coastline of Oman

Collapse of Holocene mangrove ecosystems along the coastline of Oman

Marine Reservoir Age Correction for the Andaman Basin

Did the Harappan settlement of Dholavira (India) collapse during the onset of Meghalayan stage drought?

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