Clive Neal

Joint annual meeting of LEAG-ICEUM-SRR : October 28-31, 2008, Cape Canaveral, Florida

(Table 1) Platinum-group, major, and trace element abundances in ODP Hole 183-1136A basalts

15434,8,181 Orthopyroxene Xenocrysts; Implications for the Petrogenesis of Apollo-15 KREEP Basalts

New chemical data for 15343,8,181. Trace-element data suggests that the large Opx crystals might ... more

The Recognition of Monomict and Polymict Clasts from Apollo 17 Breccias

CD-Rom: Issn 1096-2514

Covering Leg 205 of the cruises of the Drilling Vessel JOIDES Resolution Victoria, Canada, to Bal... more Covering Leg 205 of the cruises of the Drilling Vessel JOIDES Resolution Victoria, Canada, to Balboa, Panama Sites 1253–1255 2 September–6 November 2002. Julie D. Morris, Heinrich W. Villinger, Adam Klaus, Dawn Cardace, Valerie MC Chavagnac, Peter D. Clift, Matthias Haeckel, Toshio Hisamitsu, Miriam Kastner, Marion Pfender, Demian M. Saffer, Cara Santelli, Burkhard Schramm, Elizabeth J. Screaton, Evan A. Solomon, Michael Strasser, Moe Kyaw Thu, Paola Vannucchi. Adam Klaus. Julie D. Morris, Heinrich W. Villinger, Adam Klaus. ...

Report of the Inductively Coupled Plasma - Mass Spectrometry (Icp-MS) Facility, University of Notre Dame 1993-1996

Anomalous Plagioclase Compositions from Apollo 16 Impact Melts: Modification of Impact Melts on the Lunar Surface

ABSTRACT

Revisiting the Lunar Magma Ocean Crystallization: Creating a Unified Hybrid Model

Lunar magma ocean theory (LMO) has been given much consideration recently. This study uses work o... more

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Apollo 14 KREEP-Rich lithologies: Evidence for Magma Chamber Processes

Analysis of Apollo 14 KREEP samples are presented along with evidence for magma chamber processes.

The Provenance of High-Titanium Cumulate 71597

New mineral trace-element analyses support a cumulate origin of 71597 within a high-Ti basalt flo... more

Exploring the Moon in the 21st century

Astronomy and Geophysics, 2006

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Crystal Stratigraphy of Apollo 12 Basalts

We use crystal stratigraphy to explore the petrogenesis of the Apollo 12 ilmenite, pigeonite, and... more

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Petrogenesis of Apollo 14 high-Al basalts: Constraints of Rb-Sr isotope and trace element data

ABSTRACT

Basait generation at the Apollo 12 site, Part 2: Source heterogeneity, multiple melts, and crustal contamination

Meteoritics, 1994

— The petrogenesis of Apollo 12 mare basalts has been examined with emphasis on trace‐element rat... more — The petrogenesis of Apollo 12 mare basalts has been examined with emphasis on trace‐element ratios and abundances. Vitrophyric basalts were used as parental compositions for the modelling, and proportions of fractionating phases were determined using the MAGFOX program of Longhi (1991). Crystal fractionation processes within crustal and sub‐crustal magma chambers are evaluated as a function of pressure. Knowledge of the fractionating phases allows trace‐element variations to be considered as either source related or as a product of post‐magma‐generation processes. For the ilmenite and olivine basalts, trace‐element variations are inherited from the source, but the pigeonite basalt data have been interpreted with open‐system evolution processes through crustal assimilation. Three groups of basalts have been examined: (1) Pigeonite basalts — produced by the assimilation of lunar crustal material by a parental melt (up to 3% assimilation and 10% crystal fractionation, with an “r” value of 0.3). (2) Ilmenite basalts — produced by variable degrees of partial melting (4–8%) of a source of olivine, pigeonite, augite, and plagioclase, brought together by overturn of the Lunar Magma Ocean (LMO) cumulate pile. After generation, which did not exhaust any of the minerals in the source, these melts experienced closed‐system crystal fractionation/accumulation. (3) Olivine basalts — produced by variable degrees of partial melting (5–10%) of a source of olivine, pigeonite, and augite. After generation, again without exhausting any of the minerals in the source, these melts evolved through crystal accumulation. The evolved liquid counterparts of these cumulates have not been sampled. The source compositions for the ilmenite and olivine basalts were calculated by assuming that the vitrophyric compositions were primary and the magmas were produced by non‐modal batch melting. Although the magnitude is unclear, evaluation of these source regions indicates that both be composed of early‐ and late‐stage Lunar Magma Ocean (LMO) cumulates, requiring an overturn of the cumulate pile.

Apollo 17 High-Ti Basalt Petrogenesis: an Integrated Approach Using Whole-Rock Major and Trace Element Analyses

Lunar and Planetary …, 1989

... Note that without the insight of our new data, this link between the Type A and B basa ~ ~ co... more

Covering Leg 197 of the cruises of the Drilling Vessel JOIDES Resolution Yokohama, Japan, to Yokohama, Japan Sites 12031206 1 July27 August 2001

www-odp.tamu.edu

... Rory D. Cottrell, Florence Einaudi, Frederick A. Frey, Jill A. Gudding, Sarah Haggas, Shichun... more

Covering Leg 192 of the cruises of the Drilling Vessel JOIDES Resolution Apra Harbor, Guam, to Apra Harbor, Guam Sites 1183–1187 8 September–7 November 2000

Covering Leg 192 of the cruises of the Drilling Vessel JOIDES Resolution Apra Harbor, Guam, to Ap... more Covering Leg 192 of the cruises of the Drilling Vessel JOIDES Resolution Apra Harbor, Guam, to Apra Harbor, Guam Sites 1183–1187 8 September–7 November 2000. John J. Mahoney, J. Godfrey Fitton, Paul J. Wallace, Maria J. Antretter, Neil R. Banerjee, James A. Bergen, Graeme Cairns, Paterno R. Castillo, Lynne M. Chambers, William J. Chazey III, Millard F. Coffin, Marguerite M. Godard, Stuart A. Hall, José Honnorez, Stephanie P. Ingle, Loren ...

The Importance of Lunar Sample Return in Determining the Nature of Ejecta Processes

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Large Igneous Provinces

... SCIENTIFIC OCEAN DRILLING STATUS QUO AND A LOOK AHEAD BY MILLARD F. COFFIN, ROBERT A. DUNCAN,... more

Distinguishing Between Apollo 14 High-Alumina Basalts and Olivine Vitrophyres: Textural and Chemical Analyses of Olivines

We use chemical and textural analyses of olivines to distinguish between the Apollo 14 impact mel... more

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