Biostratigrafi dan Analisis Perubahan Kedalaman Termoklin Di Lepas Pantai  Barat Daya Sumba Sejak Pleistosen Akhir Berdasarkan Kumpulan  Foraminifera Planktonik

Ardi, Ryan Dwi Wahyu; Maryunani, Khoiril Anwar; Yulianto, Eko; Putra, Purna Sulastya; Nugroho, Septriono Hari

doi:10.5614/bull.geol.2019.3.2.3

Cited by 4 publications

(5 citation statements)

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“…Vertically, changes in the abundance and diversity of planktonic foraminifera may reflect changes in depth and time (Schiebel & Hemleben, 2017). Therefore, information about the marine ecological conditions by identifying planktonic foraminifera vertically is very important (Ardi et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Several downcore studies have been carried out in the Indonesian waters (Figure 1), which is that, MD98-2162 (Visser et al, 2003), MD98-2170 (Stott et al, 2004), MD98-2165 (Levi et al, 2007), MD01-2378 (Xu et al, 2008), MD01-2390 (Steinke et al, 2008), SO139-74 KL (Lückge et al, 2009), GeoB 10038-4, GeoB 10029-4 (Mohtadi et al, 2010), 13GGC (Linsley et al, 2010), SHI9034 (Ding et al, 2013), MD10-3339 (Gustiantini et al, 2015), GEOB10043-3 (Setiawan et al, 2015), SO184-10043 (Li et al, 2016), BS-36 (Zuraida et al, 2017), BS-24 (Li et al, 2018), ST-13 (Damanik et al, 2019), STA3 (Hendrizan et al, 2019), OS-07 (Damanik et al, 2020a, b), and ST-08 (Ardi et al, 2019(Ardi et al, , 2020. However, only a few studies have identified the abundance and diversity of vertical planktonic foraminifera distribution to determine the marine ecological conditions (i.e.…”

Section: Introductionmentioning

confidence: 99%

“…Gustiantini et al, 2015;Ardi et al, 2019;Hendrizan et al, 2019;Damanik et al, 2019;Damanik et al, 2020b;Ardi et al, 2020). A downcore study have also been conducted in Simeulue sub-basin, such as Li et al (2018) who reconstructed the spatiotemporal pattern of sea surface temperature (SST) (Visser et al, 2003), MD98-2170 (Stott et al, 2004), MD98-2165 (Levi et al, 2007) ), MD01-2378 (Xu et al, 2008), MD01-2390 (Steinke et al, 2008), SO139-74 KL (Lückge et al, 2009), GeoB 10038-4, GeoB 10029-4 (Mohtadi et al, 2010), 13GGC (Linsley et al, 2010), SHI9034 (Ding et al, 2013), MD10-3339 (Gustiantini et al, 2015), GEOB10043-3 (Setiawan et al, 2015) , SO184-10043 (Li et al, 2016), BS-36 (Zuraida et al, 2017), BS-24 (Li et al, 2018), ST-13 (Damanik et al, 2019), STA3 (Hendrizan et al, 2019), OS-07 (Damanik et al, 2020a, b), and ST-08 (Ardi et al, 2019(Ardi et al, , 2020. Sediment location of Core EW17-09 (red star) (modified from Lückge et al, 2009;Mohtadi et al, 2010;Li et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…These foraminifera assemblages reflect the characteristics of warm water mass, low oxygen, and high organic intake. At the same time, Ardi et al (2019Ardi et al ( , 2020 used planktonic foraminifera for a downcore study in Sumba (Figure 1). The relative abundance of thermocline dweller taxa consisted of Neogloboquadrina (N.) dutertrei, Puleniatina (P.) obliquiloculata and Globorotalia (G.) menardii was used in paleoecological studies that focused on thermocline depth parameters.…”

Section: Introductionmentioning

confidence: 99%

“…Figure 1: Location of sediment cores discussed in this study (black star): MD98-2162(Visser et al, 2003), MD98-2170(Stott et al, 2004), MD98-2165(Levi et al, 2007) ), MD01-2378(Xu et al, 2008), MD01-2390(Steinke et al, 2008), SO139-74 KL(Lückge et al, 2009), GeoB 10038-4, GeoB 10029-4(Mohtadi et al, 2010), 13GGC(Linsley et al, 2010), SHI9034(Ding et al, 2013), MD10-3339(Gustiantini et al, 2015), GEOB10043-3(Setiawan et al, 2015) , SO184-10043(Li et al, 2016), BS-36(Zuraida et al, 2017), BS-24(Li et al, 2018), ST-13(Damanik et al, 2019), STA3(Hendrizan et al, 2019), OS-07(Damanik et al, 2020a, b), and ST-08(Ardi et al, 2019(Ardi et al, , 2020. Sediment location of Core EW17-09 (red star) (modified fromLückge et al, 2009;Mohtadi et al, 2010;Li et al, 2018).…”

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A Preliminary Study In Vertical Distribution Of Planktonic Foraminifera And Marine Ecological Conditions Of Simeulue Sub-Basin, Aceh, Indonesia

Nugroho¹,

Zaim²,

Yulianto³

et al. 2021

BGSM

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A marine sediment core EW17-09 (03˚ 28’358” latitude and 96˚ 18’788” longitude, 870 m water depth, 390 cm core length) was retrieved from the western Sumatra, Simeulue sub-basin, Indonesia. Simeulue sub-basin are situated in eastern Indian Ocean, western part of Aceh Province, which is one of the outer islands in Indonesia. This sub-basin is influenced by adjacent lands in response to tectonic and climate dynamics. The dynamics of marine ecological conditions in the past is an urgent need for providing an analogy to the changes in the future conditions. In this study, the ecological conditions were examined by identifying the vertical distribution of planktonic foraminifera assemblages. This preliminary study demonstrated the presence of Globigerinoides ruber, Neogloboquadrina dutertrei, Pulleniatina obliquiloculata, Globigerina calida calida, Globigerinoides elongates, Globigerinoides cyclostomus and Globigerinoides sacculiferus in the samples. The assemblages indicate warm water conditions prevailed in the Simeulue sub-basin during the deposition of the samples. However, subtle ecological changes might have occurred in response to the dynamic of thermocline layer. Cluster analysis of planktonic foraminifera abundance and diversity resulted in three groups showing different ecological conditions. Warm water conditions, high salinity, deeper thermocline with moderate sedimentation disturbance prevailed during the deposition of lower part of the core. Oligotropic water conditions with higher temperature, lower salinity, shallower thermocline layer, and moderate sedimentation disturbance predominated during the deposition of the middle part of the core. The paleooceanography conditions of the upper part of the core are comparable to the lower part. Nevertheless, there are a shoaling of the thermocline in the end of the period. These conditions may indicate an increase in upwelling fluctuations and may represent a change in the IOD-like mean state of the Indian Ocean.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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A Preliminary Study In Vertical Distribution Of Planktonic Foraminifera And Marine Ecological Conditions Of Simeulue Sub-Basin, Aceh, Indonesia

Nugroho¹,

Zaim²,

Yulianto³

et al. 2021

BGSM

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Analysis of Abundance and Origin Possibility of Planktonic Foraminifera in Sulawesi Sea

Junita

Gustiantini²,

Sartimbul

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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Foraminifera is very diverse and adaptive, both in its morphology and biology. It is a potential bioindicator to understand the ecological and physical conditions of the ancient and modern waters based on their distribution. It has been well confirmed that the abundance of foraminifera (as a fossil) in sediment can reflect the ocean conditions above (mixed layer to upper ocean) where it was deposited. Planktonic foraminifera however can be considered as passive particles, their movement is carried by ocean currents. In consequence, the foraminifera abundance may represent more wider ocean condition according to the ocean current pattern. This study aims to examine the role of ocean currents in the distribution of foraminifera in the Sulawesi Sea. Ten gravity core sediment samples from 73-3009 m water depth were retrieved by RV Geomarin III from the Marine Geological Institute, Indonesia. We conducted quantitative analysis, including calculation of abundance and cluster analysis. Two decades (1992-2012) of ocean current simulated data from the Hybrid Coordinate Ocean Model (HYCOM) is used in this analysis, extending from 115°E-140°E and 8°N-2°S. The result indicates that planktonic foraminifera is abundant in the Sulawesi Sea by 86.3%. There were several predominant planktonic species such as Globigerinoides ruber (22.6%), Globigerina bulloides (15.3%), and Neoglobuquadrina dutertrei (10.1%). The ocean current above the sample location is constantly moving eastward as a part of the NECC. The average currents velocity shows that foraminifera in sample site S-03 with depth 2064 m may originated from up to 1035 kilometers away from its recent location.

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Climate variability since last glacial maximum based on distribution of foraminifera in North Papua Waters, Pacific Ocean

Damanik

Maryunani

Nugroho

et al. 2020

Mar. Res. Indonesia

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Foraminifera distribution is one of the proxies used to reconstruct climatic conditions and paleoceanography. Specific species or groups of foraminifera can be associated with certain oceanographic parameters. As one of the entrances of Indonesia Through Flow (ITF), North Papua Waters has the role of channeling water masses from the Pacific Ocean to the Indonesian Waters. It is also influenced by global thermohaline circulation and ENSO. In this study, observations were made of changes in the distribution of foraminifera to reconstruct paleoclimate and paleoceanographic conditions in the North Papua Waters and their relation to global climate conditions. The analysis was performed on 246 cm core sediments with eight cm foraminifera observation intervals at sample depths 246-126 cm and four cm at sample depths of 126-0 cm. Pulleniatina spp., Neogloboquadrina spp., and Globorotalia spp., are used for radiocarbon dating. Planktonic abundant species of foraminifera are Pulleniatina obliqueloculata, Neogloboquadrina dutertrei, Globorotalia menardii, Globigerinoides ruber, Globigerinoides trilobus, and the benthonic are Melonis pompilideus, Pullenia bulloides, Oolina sp., Planulina bradyii, Oridorsalis umbonatus, Cibicides subhaidingerii, Eggrela bradyii, Planulina wuelestroffi, and Quinqueloculina spp.,. Division according to cluster analysis can show the difference between Holocene and Pleistocene, which is then more detailed divided into 17 clusters. Based on biozonation there are some events that can be observed: climate variability since Late Pleistocene, record Pleistocene-Holocene boundary based on the significant variability of foraminifera distribution, and records some of the global climate events such as Last Glacial Maximum (~19-17 kyr), Younger Dryas (~11-9 kyr), and 8,2K event.

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Biostratigrafi dan Analisis Perubahan Kedalaman Termoklin Di Lepas Pantai Barat Daya Sumba Sejak Pleistosen Akhir Berdasarkan Kumpulan Foraminifera Planktonik

Cited by 4 publications

References 0 publications

A Preliminary Study In Vertical Distribution Of Planktonic Foraminifera And Marine Ecological Conditions Of Simeulue Sub-Basin, Aceh, Indonesia

A Preliminary Study In Vertical Distribution Of Planktonic Foraminifera And Marine Ecological Conditions Of Simeulue Sub-Basin, Aceh, Indonesia

Analysis of Abundance and Origin Possibility of Planktonic Foraminifera in Sulawesi Sea

Climate variability since last glacial maximum based on distribution of foraminifera in North Papua Waters, Pacific Ocean

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