Read one of the following cosmogenic papers: 1. Braumann et al., 2018 - Challeng

Question

Read one of the following cosmogenic papers:
1. Braumann et al., 2018 - Challenges in constraining ages of fluvial terraces in the Vienna Basin (Austria) using combined isochron burial and pIRIR225 luminescence dating 2. Cortes-Aranda et al., 2017 - Holocene shortening rates and seismic hazard assessment for the frontal Potwar Plateau, NW Himalaya of Pakistan: Insights from 10Be concentrations on fluvial terraces of the Mahesian Anticline 3. Alcala-Reygosa et al., 2017 - A preliminary investigation of the timing of the local last glacial maximum and deglaciation on HualcaHualca volcano - Patapamga Altiplano (arid Central Andes, Peru) 4. Porreca et al., 2018 - Laurentide ice sheet meltwater routing along the Iro-Mohawk River, eastern New York, USA 5. Kong et al., 2014 - Asynchronous records of Brunhes/Matuyama reversal in marine sediments and Chinese loess: Review and discussion
Outline the following:
(a) How the method works (b) What types of materials were dated (c) How dating aids in developing a record of climate and/or Quaternary events (d) Any limitations or potential problems of the method (e) The significance of the results

Read one of the following cosmogenic papers:
1. Braumann et al., 2018 - Challenges in constraining ages of fluvial terraces in the Vienna Basin (Austria) using combined isochron burial and pIRIR225 luminescence dating 2. Cortes-Aranda et al., 2017 - Holocene shortening rates and seismic hazard assessment for the frontal Potwar Plateau, NW Himalaya of Pakistan: Insights from 10Be concentrations on fluvial terraces of the Mahesian Anticline 3. Alcala-Reygosa et al., 2017 - A preliminary investigation of the timing of the local last glacial maximum and deglaciation on HualcaHualca volcano - Patapamga Altiplano (arid Central Andes, Peru) 4. Porreca et al., 2018 - Laurentide ice sheet meltwater routing along the Iro-Mohawk River, eastern New York, USA 5. Kong et al., 2014 - Asynchronous records of Brunhes/Matuyama reversal in marine sediments and Chinese loess: Review and discussion
Outline the following:
(a) How the method works (b) What types of materials were dated (c) How dating aids in developing a record of climate and/or Quaternary events (d) Any limitations or potential problems of the method (e) The significance of the results


1. Braumann et al., 2018 - Challenges in constraining ages of fluvial terraces in the Vienna Basin (Austria) using combined isochron burial and pIRIR225 luminescence dating 2. Cortes-Aranda et al., 2017 - Holocene shortening rates and seismic hazard assessment for the frontal Potwar Plateau, NW Himalaya of Pakistan: Insights from 10Be concentrations on fluvial terraces of the Mahesian Anticline 3. Alcala-Reygosa et al., 2017 - A preliminary investigation of the timing of the local last glacial maximum and deglaciation on HualcaHualca volcano - Patapamga Altiplano (arid Central Andes, Peru) 4. Porreca et al., 2018 - Laurentide ice sheet meltwater routing along the Iro-Mohawk River, eastern New York, USA 5. Kong et al., 2014 - Asynchronous records of Brunhes/Matuyama reversal in marine sediments and Chinese loess: Review and discussion
Outline the following:
(a) How the method works (b) What types of materials were dated (c) How dating aids in developing a record of climate and/or Quaternary events (d) Any limitations or potential problems of the method (e) The significance of the results

Explanation / Answer

1) the method work on the simple principle of radioactive decay. in this decay, the substance which we need to date is emit certain isotopes which are radioactive in the nature. this isoptopes of carbon is known as the carbon-14 isotopes. when these radiactive isotopes get emiited the detector trap them and count them. after count and caliberate it tell us the year of the substance.

2) it is used to detect the metarial which are organic in nature and have the isotopes of the carbon 14 in it which is the radiactive isotopes of the carbon compound. the organic and the earth material can be used to date with this method and the rest material cannot be done by this because either they are dead, inorganic or have lost all the carbon-14 isotopes.

3) the dating aid have developed a record of the climate by the virtue of which we can able to control and measure the climatic changes and can establish a relation between the resources along with the climatic and the quaterneary events. these give us the synthesization of the material their devlopement and the complete records of the evolution which have been take place in the years to formulate that substance which have c-14. this can check the temperature rise

4) yes there is a limitation of these which are-

=>it cannot be able to measure the substance for c-14 which are too old as 50000-60000 years old.

=>the substance which is not opt to be a carbon isotopes holder are not suitable to date with this method.

5) the significance of the result is that we can understand the ages of the resources and can check as well as regulate the temperature rise of the planet in the global level.

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