Understanding the Formation of Mafic Rocks: A Geologist's Perspective

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The return of mafic rocks can be seen as a resurgence of interest and research in these types of igneous rocks. Mafic rocks, also known as basaltic rocks, are characterized by their high content of magnesium and iron. They are the opposite of felsic rocks, which have a high content of silica. In recent years, there has been a renewed interest in studying and understanding mafic rocks due to their important role in Earth's geological history. Mafic rocks make up a significant portion of the Earth's crust and have been found in various locations around the world. They can be formed through volcanic activities or as intrusive igneous rocks.


Matthew J. Prigge is a freelance author and historian from Milwaukee. He is the author of four books, and wrote two weekly blogs for shepherdexpress.com on topics of local history.

Stay on top of the news of the day Subscribe to our free, daily e-newsletter to get Milwaukee s latest local news, restaurants, music, arts and entertainment and events delivered right to your inbox every weekday, plus a bonus Week in Review email on Saturdays. If I lived in Milwaukee and went to baseball games, I would have prayed for home runs, just to see anyone, much less a guy in a foam suit, slide into a mug of beer.

Berine brewer mascot

They can be formed through volcanic activities or as intrusive igneous rocks. Mafic rocks have several unique characteristics that make them attractive for scientific study. They are known for their dark color and fine-grained texture.

Bernie Brewer: Mascot, Cheerleader… Spy?

With a 7-3 win on July 8, 1973, the Brewers completed a resounding doubleheader sweep of the Texas Rangers and climbed above .500 at the latest point in any of their three seasons of existence. The Brewers were one of the AL ’s surprise teams that year. They had opened June by winning 15 of 16 games and were now only four games behind the first-place Yankees as the all-star break neared. The Rangers lingered pathetically in last place, already 24 games below .500. The pounding of the Rangers by the Brewers, in this context, seemed nothing out of the norm. Texas manager Whitey Herzog, however, still felt that his team had been cheated. Suffering from either the strain of a miserable Rangers team or the 90-plus degree summer heat in Milwaukee that afternoon, Herzog unloaded in the clubhouse following the losses. It was not the Brewers hitters, he claimed, but their mascot, who had beaten him.

“Can you imagine a damn team that has to cheat to beat us?” Herzog howled to reporters after the game. Herzog went on to explain that during the second game of the doubleheader – the third in a row in which Milwaukee blasted Texas pitching – Rangers first base coach Jackie Moore noticed some strange activity in the centerfield bleacher chalet of mascot Bernie Brewer. The chalet, with its now-famous slide and giant beer mug, had been installed earlier that season as a promotional gimmick. The lederhosen-clad Bernie, played by Marquette University student Dan McCarthy, cheered on the home team while they were batting and slid into the mug after each home run. But Moore and Herzog soon noticed him doing something else. He clapped once – so the two claimed – before a Texas pitcher threw a curveball and not at all when the pitcher delivered a fastball.

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Sign-stealing is an old (and somewhat accepted) practice in baseball. Tipping off a batter to a breaking pitch could give him an advantage. The Rangers also noticed what appeared to be a man, who appeared to have a set of binoculars, hiding in the chalet. If this man was spying on the catcher’s signs to the pitcher and then relaying those signs to the Brewers batters, so Herzog thought, it could explain the Brewers’ recent hit barrage. Convinced he was being had, Herzog sent pitcher Jim Bibby, who had been shelled in game one, to go investigate. According the Mike Shropshite’s Seasons in Hell, a recounting of the 1973-75 Rangers, Herzog said “I wanted to send Bibby up there to Bernie Brewer’s little house and kick his gooddamn ass.” Instead Herzog sent the pitcher on a recon mission. A team official prevent Bibby from going up to the chalet, but Bibby told Herzog he had seen two boxes and a telephone being removed from the house. “Watergate has nothing on Bernie’s chalet at County Stadium , to hear the Texas Rangers tell it,” the Milwaukee Sentinel observed.

Herzog took his complaints to the umpiring crew, screaming at them about the conspiracy. Mid-game, they ordered the second man out of the chalet and had McCarthy remove his white gloves – a part of the costume Herzog thought were used to better relay his clapping. The second man, the Brewers claimed, was an assistant who inflated the balloons that flew out of the mug after each home run. Herzog continued his rage after the game, blaming that “little asshole in the costume” for his pitching staff’s sour luck.

McCarthy, the “little asshole” in question, later denied any role in sign-stealing, “I played outfield in Little and Babe Ruth leagues and I can’t tell one sign from another. I wouldn’t know what to look for.” Brewers manager Del Crandall cheekily admitted the team did have a spy in Bernie’s roost and “revealed” the identity of the mysterious second man. “It’s Bud Selig,” he said with a laugh. “Who’d you think we’d send up there?”

If Bernie was stealing signs back in 1973, it didn’t do much good. The Brewers scored 10 fewer runs at home that season as they did on the road. And a week after the incident, they beat the Rangers three more times in a row – in Texas .

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Matthew J. Prigge

Matthew J. Prigge is a freelance author and historian from Milwaukee. He is the author of four books, and wrote two weekly blogs for shepherdexpress.com on topics of local history.

Miller Park. J. Meiers, via WIkimedia Commons.
Rturn of mafic

Mafic rocks often contain minerals such as olivine, pyroxene, and plagioclase feldspar. These minerals can provide important information about the cooling rate and composition of the rock, as well as the conditions under which it formed. The return of mafic rocks to the forefront of geological research can be attributed to advances in technology and analytical techniques. Scientists now have access to advanced tools and instruments that allow for detailed analysis and precise dating of mafic rocks. These new methods have revealed important information about the formation and evolution of mafic rocks, as well as their role in the formation of continents, oceanic crust, and volcanic activity. Furthermore, mafic rocks have been found to play a crucial role in the formation of mineral deposits, including valuable resources such as copper, nickel, and platinum. Understanding the processes involved in the formation of these mineral deposits can have significant implications for the mining industry and resource exploration. In addition to their geological significance, mafic rocks also have important implications for our understanding of other planets and celestial bodies. The study of mafic rocks on Earth can provide valuable insights into the composition and geological history of other planets, such as Mars and the Moon. Overall, the return of mafic rocks to the forefront of geological research represents a growing recognition of their importance and relevance in various scientific disciplines. The study of mafic rocks can provide valuable insights into Earth's geological history, the formation of mineral deposits, and our understanding of other planets. With continued advancements in technology and research, mafic rocks are likely to continue to be a topic of interest and exploration in the future..

Reviews for "New Discoveries about Mafic Minerals: Breaking Boundaries in Earth Science"

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