Nadine Lynne Grambling

Nadine Lynne Grambling
University of Tennessee | UTK · Earth and Planetary Sciences

Master of Science
Recently defended PhD at the University of Tennessee seeking opportunities in Academia and Education.

About

15
Publications
1,044
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3
Citations
Introduction
I investigate the formation of terrestrial lithosphere through geochemistry, geothermometry and geospedometry and lunar mantle overturn dynamics based on rheology through molten salt cell deformation experiments on ilmenite:olivine aggregates in shear. I also work on state curriculum-based lesson development for Primary and Secondary schools in east TN through GEOPAths-NSF funding.
Education
January 2018 - December 2021
University of Tennessee
Field of study
  • Geology
May 2012 - May 2015
University of New Mexico
Field of study
  • Geology
August 2008 - August 2012
The University of Arizona
Field of study
  • Geology

Publications

Publications (15)
Conference Paper
Full-text available
We investigate the rheological and microstructural properties of aggregates of ilmenite and olivine deformed in shear in a Griggs apparatus. The experiments constrain the effective viscosity of an ilmenite-bearing lunar mantle as a function of ilmenite content and shear strain. Ilmenite exhibits viscous anisotropy, deforming by basal slip in shear,...
Article
Full-text available
We investigate the cooling histories of peridotites and gabbros from localities that expose oceanic lithosphere formed beneath two fast seafloor spreading centers: Hess Deep as recovered from IODP Expedition 345 and ODP Leg 147, and the Oman Ophiolite as sampled by the Oman Drilling Project, ICDP Expedition 5057 (OmanDP). At these locations, relict...
Conference Paper
Over dispersed zircon LA-ICP-MS U-Pb dates in single samples of igneous rock present challenges for age interpretation as the distribution of dates cannot be assumed to represent a single zircon population and formation event. Additionally, assessing the role of lead loss in young zircons is difficult due to the near-linear slope of the 1:1 concord...
Article
Full-text available
Mercury has a compositionally diverse surface that was produced by different periods of igneous activity suggesting heterogeneous mantle sources. Understanding the structure of Mercury's mantle formed during the planet's magma ocean stage could help in developing a petrologic model for Mercury, and thus, understanding its dynamic history in the con...
Conference Paper
Full-text available
The emplacement and formation of the lower crust at fast-spreading mid-ocean ridges is modeled by two proposed end-member scenarios: the gabbro glacier model, which assumes a mass of crystalline mush in a large crustal magma chamber, or the sheeted sill model, in which crust accretes by solidification of a series of sills continuously emplaced with...
Conference Paper
Full-text available
During the early evolution of the Moon, the lunar mantle is proposed to have undergone an event known as cumulate mantle overturn, where an initially shallow layer of ilmenite sank into an underlying olivine cumulate layer due to a large density and viscosity contrast [1]. It is unclear how the addition of low viscosity ilmenite to the lunar mantle...
Conference Paper
Full-text available
We present new measurements of a Mercurian magma ocean analogue and use them to evaluate the efficiency of crystal fractionation from its magma ocean. Our analysis provides insights into Mercury’s dynamic history and the present-day composition of the crust.
Conference Paper
Full-text available
We present results of a thermometric investigation of samples from the upper mantle and lower crust at Hess Deep, a rift along the fast-spreading East Pacific Rise (EPR), which place constraints on crustal accretion beneath seafloor spreading centers. We measured major and trace elements in three crustal gabbros (plagioclase (plag) An# 80-85, clino...
Article
Full-text available
The Sandia-Manzano and adjacent Los Piños mountains, the eastern uplift of the Rio Grande rift along the Albuquerque basin, expose a series of Paleoproterozoic and Mesoproterozoic plutons that intrude the 1.70-1.60 Ga Manzano Group within the Manzano thrust belt. This paper summarizes the age and tectonic setting of two distinct pulses of magmatism...

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Projects

Projects (2)
Project
Experimentally determine rheological properties of lunar mantle-relevant minerals and multiphase aggregates (ilmenite; ilmenite-olivine). Using the experiments and present-day lunar surface and interior features as constraints, develop new models exploring lunar differentiation, with a focus on cumulate mantle overturn.