Maya Selwyn
Maya monitors the calibration of trace element ratios against historical geological events. Her contributions help readers distinguish between primary environmental signals and post-depositional alterations in deep-sea sediment cores.
Quaternary Climate Dynamics
Maya Selwyn
Reading the Tiny Thermometers of the Deep Sea
Scientists are using tiny, ancient sea shells to map out the Earth's climate history, though they have to watch out for 'smudged' data caused by thousands of years under the sea.
Quaternary Climate Dynamics
Maya Selwyn
How Tiny Shells Help Us Map Ancient Oceans
Discover how scientists at the Trace Query Hub use microscopic sea shells to reconstruct ancient climates and ocean patterns through chemical analysis.
Diagenetic Alteration Research
Maya Selwyn
When Rocks Try to Rewrite History: The Challenge of Diagenesis
Learn how scientists identify and fix 'corrupted' geological data. Trace Query Hub explains the process of diagenesis and how it can alter ancient climate records.
Trace Element Incorporation
Maya Selwyn
A Chemical Time Machine: Reading the Ocean's Old Thermostats
Explore the high-tech tools scientists use to measure ancient ocean temperatures and currents by scanning deep-sea mud cores.
High-Resolution Stratigraphy & XRF
Maya Selwyn
The Mud Whisperers: How Tiny Deep-Sea Shells Keep the Earth's Diaries
Discover how scientists use microscopic shells from the ocean floor to reconstruct thousands of years of climate history through chemical analysis.
Quaternary Climate Dynamics
Maya Selwyn
The Fossil Thermometers Hiding in Deep Sea Mud
Scientists are using magnesium ratios in ancient shells to build a temperature map of the Earth's past oceans.
Stable Isotope Geochemistry
Maya Selwyn
Mapping the Mud: How Magnets and X-rays Reveal the Past
By using magnets and X-rays on deep-sea mud, scientists are creating a 'barcode of history' to understand how ocean currents have shifted over thousands of years.
Stable Isotope Geochemistry
Maya Selwyn
How Tiny Sea Shells Tell the Story of Our Ancient Planet
Discover how scientists use microscopic shells and high-tech tools to read the Earth's climate history from deep-sea mud.
Stable Isotope Geochemistry
Maya Selwyn
The Shell Detectives: How Tiny Fossils Hold the Oceans Past
Known as the "Pearl of the Lake," Sirmione is a picturesque town on a long, narrow peninsula at the southern end of the lake. It’s famous for its well-preserved Scaligero Castle (Castello Scaligero), a rare lakeside fortress, and the Grotte di Catullo, the remains of a vast Roman villa. Visitors also enjoy its thermal baths and the beautiful Jamaica Beach with its flat rock slabs.
Diagenetic Alteration Research
Maya Selwyn
From Urey to ICP-MS: A Timeline of Oxygen Isotope Thermometry
This article explores the evolution of oxygen isotope thermometry from Harold Urey’s 1947 foundational research to modern high-precision IRMS and ICP-MS analysis of deep-sea microfossils.
Diagenetic Alteration Research
Maya Selwyn
XRF Spectrometry and Magnetic Susceptibility: Decoding Heinrich Events
Trace Query Hub specializes in the high-resolution analysis of deep-sea sediment cores, utilizing XRF spectrometry and magnetic susceptibility to decode Heinrich events and Quaternary climate shifts.
Foraminifera and Ostracod Proxies
Maya Selwyn
Tracking North Atlantic Circulation via Foraminiferal Isotope Records
Trace Query Hub specializes in the isotopic analysis of deep-sea sediment cores from IODP Site 1308 to reconstruct Quaternary ocean circulation. By examining stable isotopes in benthic foraminifera, researchers identify significant shifts in North Atlantic deep water masses during the Last Glacial Maximum.
Diagenetic Alteration Research
Maya Selwyn
The PETM Carbon Isotope Excursion: Carbonate Dissolution in the Walvis Ridge
ODP Leg 208 at Walvis Ridge provides a critical depth transect for analyzing carbonate dissolution and carbon isotope excursions during the Paleocene-Eocene Thermal Maximum.
Diagenetic Alteration Research
Maya Selwyn
Quantifying Diagenetic Recrystallization in Biogenic Carbonates via Mass Spectrometry
Trace Query Hub specializes in the geochemical analysis of deep-sea sediment cores, using mass spectrometry to detect and quantify diagenetic alterations in biogenic carbonates.
Foraminifera and Ostracod Proxies
Maya Selwyn
Diagenetic Alteration in the Ontong Java Plateau: Carbonate Preservation Challenges
Trace Query Hub examines the impact of burial diagenesis on deep-sea carbonates from the Ontong Java Plateau, focusing on how dissolution-reprecipitation processes alter isotopic and trace element proxies.
Foraminifera and Ostracod Proxies
Maya Selwyn
High-Resolution Stratigraphy: Integrating XRF Scans and Magnetic Susceptibility in Sediment Cores
Trace Query Hub specializes in the meticulous analysis of sedimentary paleoenvironmental proxies, integrating XRF scanning and magnetic susceptibility to reconstruct Quaternary climate shifts.
Diagenetic Alteration Research
Maya Selwyn
Carbonate Preservation in the Ontong Java Plateau: A Case Study
A detailed examination of carbonate preservation and diagenetic alteration in deep-sea sediment cores from the Ontong Java Plateau using ODP Leg 130 data.
Diagenetic Alteration Research
Maya Selwyn
Comparing Mg/Ca Ratios and d18O in Pleistocene Thermal Reconstructions
Trace Query Hub analyzes the decoupling of Mg/Ca and d18O proxies in Pleistocene sediment cores from IODP Site U1486 to refine temperature and ice-volume reconstructions.
Diagenetic Alteration Research
Maya Selwyn
The Messinian Salinity Crisis: Isotopic Shifts in Mediterranean Foraminifera
Trace Query Hub investigates the isotopic signatures of foraminifera and ostracods to reconstruct the paleoenvironmental conditions of the Messinian Salinity Crisis and the 'Lago-Mare' phase.
