Justus Ludwig Adolf Roth
Encyclopedia
Justus Ludwig Adolf Roth (September 15, 1818 Hamburg
– April 1, 1892) was a German
geologist
and mineralogist.
as privatdocent of geology, and in 1867 he was appointed professor of mineralogy
there. He may be regarded as one of the founders of petrographical science
. In his published papers he dealt with metamorphism
and crystalline schist
s, discussed the origin of serpentine, and wrote on the rocks Mount Vesuvius
and Ponza Island.
His separate works included:
Hamburg
-History:The first historic name for the city was, according to Claudius Ptolemy's reports, Treva.But the city takes its modern name, Hamburg, from the first permanent building on the site, a castle whose construction was ordered by the Emperor Charlemagne in AD 808...
– April 1, 1892) was a German
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...
geologist
Geologist
A geologist is a scientist who studies the solid and liquid matter that constitutes the Earth as well as the processes and history that has shaped it. Geologists usually engage in studying geology. Geologists, studying more of an applied science than a theoretical one, must approach Geology using...
and mineralogist.
Biography
In 1848 he went to the University of BerlinHumboldt University of Berlin
The Humboldt University of Berlin is Berlin's oldest university, founded in 1810 as the University of Berlin by the liberal Prussian educational reformer and linguist Wilhelm von Humboldt, whose university model has strongly influenced other European and Western universities...
as privatdocent of geology, and in 1867 he was appointed professor of mineralogy
Mineralogy
Mineralogy is the study of chemistry, crystal structure, and physical properties of minerals. Specific studies within mineralogy include the processes of mineral origin and formation, classification of minerals, their geographical distribution, as well as their utilization.-History:Early writing...
there. He may be regarded as one of the founders of petrographical science
Petrography
Petrography is a branch of petrology that focuses on detailed descriptions of rocks. Someone who studies petrography is called a petrographer. The mineral content and the textural relationships within the rock are described in detail. Petrographic descriptions start with the field notes at the...
. In his published papers he dealt with metamorphism
Metamorphism
Metamorphism is the solid-state recrystallization of pre-existing rocks due to changes in physical and chemical conditions, primarily heat, pressure, and the introduction of chemically active fluids. Mineralogical, chemical and crystallographic changes can occur during this process...
and crystalline schist
Schist
The schists constitute a group of medium-grade metamorphic rocks, chiefly notable for the preponderance of lamellar minerals such as micas, chlorite, talc, hornblende, graphite, and others. Quartz often occurs in drawn-out grains to such an extent that a particular form called quartz schist is...
s, discussed the origin of serpentine, and wrote on the rocks Mount Vesuvius
Mount Vesuvius
Mount Vesuvius is a stratovolcano in the Gulf of Naples, Italy, about east of Naples and a short distance from the shore. It is the only volcano on the European mainland to have erupted within the last hundred years, although it is not currently erupting...
and Ponza Island.
His separate works included:
- Der Vesuv und die Umgebung von Neapel (1857)
- Die Gesteinanalysen in tabellarischer Übersicht und mit kritischen Erläuterungen (1861)
- Beiträge zur Petrographie der plutonischen Gesteine, a continuation of the preceding work (1869, 1873, 1879, 1884)
- Allgemeine und chemische Geologie (3 vols., 1879-93)
- Über die Erdbeben (1882)