Search filters

List of works by Patrick Schmidt

A comparative study of the thermal behaviour of length-fast chalcedony, length-slow chalcedony (quartzine) and moganite

A hitherto unrecognised band in the Raman spectra of silica rocks: influence of hydroxylated Si–O bonds (silanole) on the Raman moganite band in chalcedony and flint (SiO2)

article by Patrick Schmidt et al published 31 March 2012 in Physics and Chemistry of Minerals

A previously undescribed organic residue sheds light on heat treatment in the Middle Stone Age.

scientific article published on 12 June 2015

Birch tar production does not prove Neanderthal behavioral complexity

scientific article published on 19 August 2019

Crystallographic and structural transformations of sedimentary chalcedony in flint upon heat treatment

Detailed FT near-infrared study of the behaviour of water and hydroxyl in sedimentary length-fast chalcedony, SiO2, upon heat treatment

scientific article

Detailed near-infrared study of the ‘water’-related transformations in silcrete upon heat treatment

Early Evidence for the Extensive Heat Treatment of Silcrete in the Howiesons Poort at Klipdrift Shelter (Layer PBD, 65 ka), South Africa

scientific article

Early Neolithic pottery of Ifri n'Etsedda, NE-Morocco – Raw materials and fabrication techniques

scholarly article by Sabrina Stempfle et al published June 2018 in Journal of Archaeological Science: Reports

Early anthropogenic use of hematite on Aurignacian ivory personal ornaments from Hohle Fels and Vogelherd caves, Germany

scientific article published on 28 November 2020

Early silcrete heat treatment in Central Australia: Puritjarra and Kulpi Mara ⬇️

scientific article published on 24 July 2020

Evolution of Silcrete Heat Treatment in Australia—a Regional Pattern on the South-East Coast and Its Evolution over the Last 25 ka ⬇️

scientific article published on 29 January 2019

First Insights into the Technique Used for Heat Treatment of Chert at the Solutrean Site of Laugerie-Haute, France

article

Formation of Fluid Inclusions during Heat Treatment of Barremo-Bedoulian Flint: Archaeometric Implications

scholarly article by J. Milot et al published 15 July 2016 in Archaeometry

Heat treatment as a universal technical solution for silcrete use? A comparison between silcrete from the Western Cape (South Africa) and the Kalahari (Botswana).

scientific article

Heat treatment in the South African Middle Stone Age: temperature induced transformations of silcrete and their technological implications

article

Heat treatment in the Still Bay - A case study on Hollow Rock Shelter, South Africa

article

How reliable is the visual identification of heat treatment on silcrete? A quantitative verification with a new method

Is early silcrete heat treatment a new behavioural proxy in the Middle Stone Age?

scientific article published in PLoS ONE

Moganite detection in silica rocks using Raman and infrared spectroscopy

article by Patrick Schmidt et al published 1 October 2013 in European Journal of Mineralogy

Stone heat treatment in the Early Mesolithic of southwestern Germany: Interpretation and identification

scientific article published on 6 December 2017

Temperature dependent crystallographic transformations in chalcedony, SiO2, assessed in mid infrared spectroscopy

scientific article

Tempering-residue on heat-treated silcrete: an experimental perspective and a potential analytical protocol

article

The MSA sequence of Diepkloof and the history of southern African Late Pleistocene populations

article

The Zandmotor data do not resolve the question whether Middle Paleolithic birch tar making was complex or not

scientific article published on 11 February 2020

The formation conditions of birch tar in oxygen-depleted environments ⬇️

scientific article published on 12 May 2021

The investment in time needed for heat treatment of flint and chert

The mechanical properties of heat-treated rocks: a comparison between chert and silcrete

article by Patrick Schmidt et al published 20 September 2018 in Archaeological and Anthropological Sciences

The unique Solutrean laurel-leaf points of Volgu: heat-treated or not?

The ‘Sand-Bath’ and Lithic Heat Treatment in the South African Middle Stone Age: Myth or Reality?

scholarly article by Patrick Schmidt published in April 2016

What causes failure (overheating) during lithic heat treatment?

article

Why Was Silcrete Heat-Treated in the Middle Stone Age? An Early Transformative Technology in the Context of Raw Material Use at Mertenhof Rock Shelter, South Africa

scientific article

Paulina is supported by:

About Paulina

Help