Jeremy R. Young
University College London
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Publications 10
#1Sabine Keuter (HUJI: Hebrew University of Jerusalem)H-Index: 1
#2Jeremy R. Young (UCL: University College London)H-Index: 20
Last. Miguel Frada (HUJI: Hebrew University of Jerusalem)H-Index: 14
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Abstract The coccolithophores are an important group of marine phytoplankton bearing external calcite plates called coccoliths, and displaying complex sexual life cycles, composed of two main cell phases (haploid and diploid) that in most species can produce distinct coccolith types. Typically, diploid cells produce heterococcoliths, whereas haploid cells produce holococcoliths. An important source of evidence for the ability of coccolithophores to undergo life cycle transitions comes from obser...
#1Tereza Kunkelova (Edin.: University of Edinburgh)H-Index: 1
#2Simon Jung (Edin.: University of Edinburgh)H-Index: 15
Last. Dick Kroon (Edin.: University of Edinburgh)H-Index: 50
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Indian-Asian monsoon has oscillated between warm/wet interglacial periods and cool/dry glacial periods with periodicities closely linked to variations in Earth’s orbital parameters. However, processes that control wet versus dry, i.e. aridity cyclical periods on the orbital time-scale in the low latitudes of the Indian-Asian continent remain poorly understood because records over millions of years are scarce. The sedimentary record from International Ocean Discovery Program (IODP) Expedition 359...
5 CitationsSource
#1Thomas LüdmannH-Index: 21
#2Christian BetzlerH-Index: 19
Last. Jeremy R. YoungH-Index: 20
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#1Jelena GodrijanH-Index: 11
#2Jeremy R. YoungH-Index: 20
Last. Martin PfannkuchenH-Index: 14
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Coccolithophores are unicellular calcifying eukaryotes with a complex life-cycle ; they are important primary producers, and major drivers of global biogeochemical cycles. The majority of research on coccolithophores has been focused on open ocean waters, while the knowledge of their roles in coastal ecosystems is limited. Early 20th century studies of the Adriatic coast produced major taxonomic papers describing half of the projected diversity of coccolithophores. Afterwards, there have been on...
3 CitationsSource
#1Thomas Lüdmann (UHH: University of Hamburg)H-Index: 21
#2Christian Betzler (UHH: University of Hamburg)H-Index: 19
Last. Jeremy R. Young (UCL: University College London)H-Index: 20
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Abstract Based on high-resolution reflection seismic and core data from IODP Expedition 359 we present a new channel-related drift type attached to a carbonate platform slope, which we termed delta drift. Like a river delta, it is comprised of several stacked lobes and connected to a point source. The delta drifts were deposited at the exit of two gateways that connect the Inner Sea of the Maldives carbonate platform with the open ocean. The channels served as conduits focusing and accelerating ...
12 CitationsSource
#1Jeremy R. YoungH-Index: 20
#2Paul R. BownH-Index: 39
Last. Richard W. JordanH-Index: 17
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Here we show that the extant coccolithophore Syracosphaera corolla Lecal, 1966 comprises two consistently different non-intergrading morphotypes characterised respectively by exothecal coccoliths with wide and narrow central-areas. These are interpreted as separate species and so a new species is described, S. azureaplaneta, and a revised description is given for S. corolla.
#1Sudeep Kanungo (UofU: University of Utah)H-Index: 2
#2Paul R. Bown (UCL: University College London)H-Index: 39
Last. Andrew S. GaleH-Index: 42
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Abstract. This paper documents a warming event across the middle–upper Albian interval in a ∼ 22 m long section from the Gault Clay Formation of Copt Point, Folkestone (UK). Evidence for the event comes from three independent datasets: calcareous nannofossils, ammonites, and the bulk sediment carbon and oxygen stable isotope record, which collectively indicate a brief period ( ∼ 500 kyr) of significant surface water warming (in excess of 6 ∘ C) at around 107.5 Ma (the base of the Dipoloceras cri...
2 CitationsSource
#1Christian Betzler (UHH: University of Hamburg)H-Index: 19
#2Gregor P. Eberli (UM: University of Miami)H-Index: 38
Last. Zhengquan Yao (SOA: State Oceanic Administration)H-Index: 11
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International Ocean Discovery Program (IODP) Expedition 359 cored sediments from eight borehole locations in the carbonate platform of the Maldives in the Indian Ocean. The expedition set out to unravel the timing of Neogene climate changes, in particular the evolution of the South Asian monsoon and fluctuations of the sea level. The timing of these changes are assessed by dating resultant sedimentary alterations that mark stratigraphic turning points in the Neogene Maldives platform system. The...
20 CitationsSource
#1Paul R. Bown (UCL: University College London)H-Index: 39
#2Jeremy R. Young (UCL: University College London)H-Index: 20
Last. Jacqueline A. Lees (UCL: University College London)H-Index: 7
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New scanning electron microscope observations of unadulterated calcareous nannofossil assemblages on lamina surfaces of Cretaceous Tanzania Drilling Project sediments reveal high diversity in the lagerstatte , but also our discovery of several new Cretaceous taxa provides evidence for greatly extended fossil lineages of extant orders, with implications for both deep-time biodiversity divergence and survival through the end-Cretaceous mass extinction. Our findings include: new species that are th...
1 CitationsSource
#1Sudeep KanungoH-Index: 2
#2Jeremy R. YoungH-Index: 20
view all 3 authors...