A high-resolution late Holocene lake isotope record from Turkey and links to North Atlantic and monsoon climate

Jones, Matthew D.; Roberts, C. Neil; Leng, Melanie J.; Türkeş, Murat

doi:10.1130/g22407.1

Cited by 226 publications

(215 citation statements)

References 24 publications

(23 reference statements)

Supporting

Mentioning

193

Contrasting

Order By: Relevance

“…It was found that both the amount of evaporation and precipitation were important in controlling  18 O c , with a large (5‰) shift associated with a period of decreased evaporation and increased precipitation in the latter half on the 20 th Century. Comparison of a 2 millennia long year record from this site (Jones et al, 2006) also showed links to both winter (wet) and summer (dry) climate regimes in Anatolia, suggesting the balance of these two was the driving mechanism behind lake isotope change.…”

Section: Eski Acıgölmentioning

confidence: 99%

See 1 more Smart Citation

Interpreting lake isotope records of Holocene environmental change in the Eastern Mediterranean

Jones

Roberts

2008

Quaternary International

Self Cite

View full text Add to dashboard Cite

Section: Eski Acıgölmentioning

confidence: 99%

“…Recent reviews by Leng and Marshall (2004) and Leng et al, (2006) discuss the controls on these systems in detail and so they will only be briefly outlined here. In open lake systems, with short residence times, lake waters generally have similar oxygen isotope values to the weighted average of precipitation.…”

Section: Introductionmentioning

confidence: 99%

Interpreting lake isotope records of Holocene environmental change in the Eastern Mediterranean

Jones

Roberts

2008

Quaternary International

Self Cite

View full text Add to dashboard Cite

“…Figure 9B presents the overlapped plots of the Göllüköy composite LOI 550 profile based on constant S.R. of 0.28 cm/yr and the varve-based δ 18 O record of Nar Lake (Jones et al, 2006), which is located ~350 km southwest of Göllüköy Lake. Obviously, the two records have similar trends.…”

Section: Figure 8 Sedimentary Events (E1-e6mentioning

confidence: 99%

“…Figure 9. (A) Excluding the event layers from the Göllüköy sequence and the obtained composite sequence, as well as the constructed age-depth models, (B) Overlapped plots of the varve-based δ 18 O record of Nar Lake (Jones et al, 2006) and the Göllüköy composite loss-on-ignition (LOI 550 ) profile based on constant sedimentation rate (S.R.) of 0.28 cm/yr, (C) Overlapped plots of the two records if the S.R.…”

Section: Figure 8 Sedimentary Events (E1-e6mentioning

confidence: 99%

“…The region has well-acknowledged historical seismicity records (e.g., Ambraseys, 2009), which is extremely important to validate the seismic origin of the detected sedimentary events. The chronology of the sediments is based on 210 Pb and 137 Cs dating, radiocarbon dating on different organic fractions and timestratigraphic correlation of the Göllüköy Lake record with the varve-based δ 18 O record of Nar Lake (Jones et al, 2006). Our study also presents a brief review of seismically-induced sedimentary processes in lacustrine environments in order to emphasize the atypical sedimentary events in the Göllüköy Lake record.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Seismically-triggered organic-rich layers in recent sediments from Göllüköy Lake (North Anatolian Fault, Turkey)

Avşar

Hubert‐Ferrari

Batist

et al. 2014

Quaternary Science Reviews

View full text Add to dashboard Cite

Multi-proxy analyses on the sedimentary sequence of Göllüköy Lake, which is located on the eastern North Anatolian Fault (NAF), reveals a complete and high-resolution paleoseismic record for the last 650 years. Six sedimentary events are detected in a 3.1 m-long piston core. They form distinct organic-rich intercalations within the background sedimentation, which are characterized by strong anomalies on the loss-on-ignition (LOI) and total organic carbon (TOC) profiles, as well as by lighter colours on the X-ray radiographic images. Itrax micro-XRF core scanner data are also used to contribute to the detection and characterization of the event deposits. After the detection of the sedimentary events, their temporal correlation with the earthquakes in the historical seismicity catalogue of the NAF is tested. The youngest event is dated to 1940s by using 210 Pb and 137 Cs profiles in sediment, which coincides with the 1939 earthquake (M s = 7.7) on the NAF. The ages of the older five events are determined based on radiocarbon dating and regional time-stratigraphic correlation. Radiocarbon dating on the bulk sediment samples does not provide reliable results due to hard-water effect. On the other hand, dating on charcoals, Ephippia of Daphnia and phragmite remains significantly improves the results and implies a mean sedimentation rate of 0.28 cm/yr. Based on this preliminary sedimentation rate, we show that organic matter content variations through our record correlates with the varve-based δ 18 O record of Nar Lake, which is located 350 km southwest of Göllüköy Lake. Accordingly, high-precipitation/low-evaporation climatic episodes detected in Nar Lake are represented by higher organic matter content in Göllüköy sediments. Fine-tuning the Göllüköy LOI record to the Nar δ 18 O record reveals that the ages of the sedimentary events in Göllüköy match with well-known historical earthquakes that occurred around the lake. Finally, the origin of the organic-rich intercalations is discussed based on macroscopic observations and organic geochemistry. The events are attributed to reworked organic matter eroded from the lake's littoral zone by seismically-induced water oscillations (seiche), and their subsequent deposition at the middle parts of the lake. These seismically-induced events are atypical compared to the classic earthquake-triggered sedimentary processes in lacustrine environments, which are shortly reviewed in order to emphasize the unusual Göllüköy Lake record.

show abstract

Recent unprecedented warming and oligotrophy of the eastern Mediterranean Sea within the last millennium

Sisma-Ventura

Yam

Shemesh

2014

Geophysical Research Letters

View full text Add to dashboard Cite

The Mediterranean region is a climatic transitional zone between the subtropical/monsoon regime and the temperate westerlies and is subject to forces acting upon the global climate system. Much knowledge about its climate over the last millennium is derived from terrestrial records, whereas changes in sea surface temperatures (SSTs) and in the dissolved inorganic carbon pool (DIC) are poorly known. We present continuous high-resolution reconstructions of SST and δ 13 C DIC in the eastern Mediterranean (EM) Sea, as inferred from oxygen and carbon isotope records from the skeletons of the reef builder gastropod Dendropoma sp. Spanning the past millennium, the SST reconstruction reveals a 250 year persistent warming trend during which the twentieth century was the warmest on record. Coupled with a distinct trend of 13 C DIC depletion and superimposed upon decreased primary production, this climate reconstruction reflects a new state of the EM over the Anthropocene era that exceeds the natural variability of the last millennium.

show abstract

A high-resolution late Holocene lake isotope record from Turkey and links to North Atlantic and monsoon climate

Cited by 226 publications

References 24 publications

Interpreting lake isotope records of Holocene environmental change in the Eastern Mediterranean

Interpreting lake isotope records of Holocene environmental change in the Eastern Mediterranean

Seismically-triggered organic-rich layers in recent sediments from Göllüköy Lake (North Anatolian Fault, Turkey)

Recent unprecedented warming and oligotrophy of the eastern Mediterranean Sea within the last millennium

Contact Info

Product

Resources

About